diff options
| author | Herb Lewis <herb@samba.org> | 1998-05-01 19:02:08 +0000 |
|---|---|---|
| committer | Herb Lewis <herb@samba.org> | 1998-05-01 19:02:08 +0000 |
| commit | 20fa298e020027ee8e0a95d91398a18aaa56afff (patch) | |
| tree | 35ce9d936c7132d02d538b6f2e07f14d580793b5 | |
| parent | 9aba1bee37b6981e69ea738f05cc92e0125f6007 (diff) | |
| download | samba-20fa298e020027ee8e0a95d91398a18aaa56afff.tar.gz samba-20fa298e020027ee8e0a95d91398a18aaa56afff.tar.bz2 samba-20fa298e020027ee8e0a95d91398a18aaa56afff.zip | |
here is a first cut at a "fixed up" help file
(This used to be commit 75298937a851573309cad66af9816010ad2bd9a7)
| -rw-r--r-- | swat/help/parameters.html | 5525 |
1 files changed, 2189 insertions, 3336 deletions
diff --git a/swat/help/parameters.html b/swat/help/parameters.html index 15cf563983..c6c1b34d0e 100644 --- a/swat/help/parameters.html +++ b/swat/help/parameters.html @@ -1,3367 +1,2220 @@ <HTML> <BODY> -SWAT Parameters help<p> - -We need to reformat the smb.conf man page as HTML with a label for -each parameter. Anyone want to write a perl script? Currently I've -just done a quick hack with an emacs macro to get something in -place. Or maybe the SGML conversion will be the way to go?<p> +<H1 ALIGN=CENTER>SWAT Parameters help</H1> <hr> -<a name="admin users"> -<H3>admin users (S)</H3><p> - -This is a list of users who will be granted administrative privileges -on the share. This means that they will do all file operations as the -super-user (root).<p> - -You should use this option very carefully, as any user in this list -will be able to do anything they like on the share, irrespective of -file permissions.<p> - -.B Default: - no admin users<p> - -.B Example: - admin users = jason<p> - -<a name="announce as"> -<H3>announce as (G)</H3><p> - -This specifies what type of server nmbd will announce itself as in -browse lists. By default this is set to Windows NT. The valid options -are "NT", "Win95" or "WfW" meaining Windows NT, Windows 95 and -Windows for Workgroups respectively. Do not change this parameter -unless you have a specific need to stop Samba appearing as an NT -server as this may prevent Samba servers from participating as -browser servers correctly.<p> - -.B Default: - announce as = NT<p> - -.B Example - announce as = Win95<p> - -<a name="announce version"> -<H3>announce version (G)</H3><p> - -This specifies the major and minor version numbers that nmbd -will use when announcing itself as a server. The default is 4.2. -Do not change this parameter unless you have a specific need to -set a Samba server to be a downlevel server.<p> - -.B Default: - announce version = 4.2<p> - -.B Example: - announce version = 2.0<p> - -<a name="auto services"> -<H3>auto services (G)</H3> -This is a list of services that you want to be automatically added to -the browse lists. This is most useful for homes and printers services -that would otherwise not be visible.<p> - -Note that if you just want all printers in your printcap file loaded -then the "load printers" option is easier.<p> - -.B Default: - no auto services<p> - -.B Example: - auto services = fred lp colorlp<p> - -<a name="allow hosts"> -<H3>allow hosts (S)</H3> -A synonym for this parameter is 'hosts allow'.<p> - -This parameter is a comma delimited set of hosts which are permitted to access -a service. <p> - -If specified in the [global] section then it will apply to all -services, regardless of whether the individual service has a different -setting. <p> - -You can specify the hosts by name or IP number. For example, you could -restrict access to only the hosts on a Class C subnet with something like -"allow hosts = 150.203.5.". The full syntax of the list is described in -the man page -.BR hosts_access (5).<p> - -You can also specify hosts by network/netmask pairs and by netgroup -names if your system supports netgroups. The EXCEPT keyword can also -be used to limit a wildcard list. The following examples may provide -some help:<p> - -Example 1: allow all IPs in 150.203.*.* except one<p> - - hosts allow = 150.203. EXCEPT 150.203.6.66<p> - -Example 2: allow hosts that match the given network/netmask<p> - - hosts allow = 150.203.15.0/255.255.255.0<p> - -Example 3: allow a couple of hosts<p> - - hosts allow = lapland, arvidsjaur<p> - -Example 4: allow only hosts in netgroup "foonet" or localhost, but -deny access from one particular host<p> - - hosts allow = @foonet, localhost - hosts deny = pirate<p> - -Note that access still requires suitable user-level passwords.<p> - -See -.BR testparm (1) -for a way of testing your host access to see if it -does what you expect.<p> - -.B Default: - none (i.e., all hosts permitted access)<p> - -.B Example: - allow hosts = 150.203.5. myhost.mynet.edu.au<p> - -<a name="alternate permissions"> -<H3>alternate permissions (S)</H3><p> - -This option affects the way the "read only" DOS attribute is produced -for UNIX files. If this is false then the read only bit is set for -files on writeable shares which the user cannot write to.<p> - -If this is true then it is set for files whos user write bit is not set.<p> - -The latter behaviour is useful for when users copy files from each -others directories, and use a file manager that preserves -permissions. Without this option they may get annoyed as all copied -files will have the "read only" bit set.<p> - -.B Default: - alternate permissions = no<p> - -.B Example: - alternate permissions = yes<p> - -<a name="available"> -<H3>available (S)</H3> -This parameter lets you 'turn off' a service. If 'available = no', then -ALL attempts to connect to the service will fail. Such failures are logged.<p> - -.B Default: - available = yes<p> - -.B Example: - available = no<p> - -<a name="bind interfaces only"> -<H3>bind interfaces only (G)</H3> -This global parameter (new for 1.9.18) allows the Samba admin to limit -what interfaces on a machine will serve smb requests. If affects file service -(smbd) and name service (nmbd) in slightly different ways.<p> - -For name service it causes nmbd to bind to ports 137 and 138 on -the interfaces listed in the 'interfaces' parameter. nmbd also binds -to the 'all addresses' interface (0.0.0.0) on ports 137 and 138 -for the purposes of reading broadcast messages. If this option is -not set then nmbd will service name requests on all of these -sockets. If "bind interfaces only" is set then nmbd will check -the source address of any packets coming in on the broadcast -sockets and discard any that don't match the broadcast addresses -of the interfaces in the 'interfaces' parameter list. As unicast -packets are received on the other sockets it allows nmbd to -refuse to serve names to machines that send packets that arrive -through any interfaces not listed in the 'interfaces' list. -IP Source address spoofing does defeat this simple check, however -so it must not be used seriously as a security feature for nmbd.<p> - -For file service it causes smbd to bind only to the interface -list given in the 'interfaces' parameter. This restricts the -networks that smbd will serve to packets coming in those interfaces. -Note that you should not use this parameter for machines that -are serving ppp or other intermittant or non-broadcast network -interfaces as it will not cope with non-permanent interfaces.<p> - -.B Default: - bind interfaces only = False<p> - -.B Example: - bind interfaces only = True<p> - -<a name="browseable"> -<H3>browseable (S)</H3> -This controls whether this share is seen in the list of available -shares in a net view and in the browse list.<p> - -.B Default: - browseable = Yes<p> - -.B Example: - browseable = No -<a name="browse lis"> -<H3>browse list(G)</H3> -This controls whether the smbd will serve a browse list to a client -doing a NetServerEnum call. Normally set to true. You should never -need to change this.<p> - -.B Default: - browse list = Yes<p> - -<a name="case sensitive"> -<H3>case sensitive (G)</H3> -See the discussion on NAME MANGLING.<p> - -<a name="case sig names"> -<H3>case sig names (G)</H3> -See "case sensitive"<p> - -<a name="character set"> -<H3>character set (G)</H3> -This allows a smbd to map incoming characters from a DOS 850 Code page -to either a Western European (ISO8859-1) or Easter European (ISO8859-2) -code page. Normally not set, meaning no filename translation is done.<p> - -.B Default<p> - - character set =<p> - -.B Example<p> - - character set = iso8859-1<p> - -<a name="client code page"> -<H3>client code page (G)</H3> -Currently (Samba 1.9.17 and above) this may be set to one of two -values, 850 or 437. It specifies the base DOS code page that the -clients accessing Samba are using. To determine this, open a DOS -command prompt and type the command "chcp". This will output the -code page. The default for USA MS-DOS, Windows 95, and Windows NT -releases is code page 437. The default for western european -releases of the above operating systems is code page 850.<p> - -This parameter co-operates with the "valid chars" parameter in -determining what characters are valid in filenames and how -capitalization is done. It has been added as a convenience for -clients whose code page is either 437 or 850 so a convoluted -"valid chars" string does not have to be determined. If you -set both this parameter and the "valid chars" parameter the -"client code page" parameter MUST be set before the "valid chars" -in the smb.conf file. The "valid chars" string will then augment -the character settings in the "client code page" parameter.<p> - -If "client code page" is set to a value other than 850 or 437 -it will default to 850.<p> - -See also : "valid chars".<p> - -.B Default<p> - - client code page = 850<p> - -.B Example<p> - - client code page = 437<p> - -<a name="comment"> -<H3>comment (S)</H3> -This is a text field that is seen next to a share when a client does a -net view to list what shares are available.<p> - -If you want to set the string that is displayed next to the machine -name then see the server string command.<p> - -.B Default: - No comment string<p> - -.B Example: - comment = Fred's Files<p> - -<a name="config file"> -<H3>config file (G)</H3><p> - -This allows you to override the config file to use, instead of the -default (usually smb.conf). There is a chicken and egg problem here as -this option is set in the config file! <p> - -For this reason, if the name of the config file has changed when the -parameters are loaded then it will reload them from the new config -file.<p> - -This option takes the usual substitutions, which can be very useful.<p> - -If the config file doesn't exist then it won't be loaded (allowing -you to special case the config files of just a few clients).<p> - -.B Example: - config file = /usr/local/samba/lib/smb.conf.%m<p> - -<a name="copy"> -<H3>copy (S)</H3> -This parameter allows you to 'clone' service entries. The specified -service is simply duplicated under the current service's name. Any -parameters specified in the current section will override those in the -section being copied.<p> - -This feature lets you set up a 'template' service and create similar -services easily. Note that the service being copied must occur earlier -in the configuration file than the service doing the copying.<p> - -.B Default: - none<p> - -.B Example: - copy = otherservice -<a name="create mask"> -<H3>create mask (S)</H3> -A synonym for this parameter is 'create mode'.<p> - -When a file is created, the neccessary permissions are calculated -according to the mapping from DOS modes to UNIX permissions, and -the resulting UNIX mode is then bit-wise 'AND'ed with this parameter. -This parameter may be thought of as a bit-wise MASK for the UNIX -modes of a file. Any bit *not* set here will be removed from the -modes set on a file when it is created.<p> - -The default value of this parameter removes the 'group' and 'other' -write and execute bits from the UNIX modes.<p> - -Following this Samba will bit-wise 'OR' the UNIX mode created from -this parameter with the value of the "force create mode" parameter -which is set to 000 by default.<p> - -For Samba 1.9.17 and above this parameter no longer affects directory -modes. See the parameter 'directory mode' for details.<p> - -See also the "force create mode" parameter for forcing particular -mode bits to be set on created files. -See also the "directory mode" parameter for masking mode bits on created -directories.<p> - -.B Default: - create mask = 0744<p> - -.B Example: - create mask = 0775 -<a name="create mode"> -<H3>create mode (S)</H3> -See -.B create mask.<p> - -<a name="dead time"> -<H3>dead time (G)</H3> -The value of the parameter (a decimal integer) represents the number of -minutes of inactivity before a connection is considered dead, and it -is disconnected. The deadtime only takes effect if the number of open files -is zero.<p> - -This is useful to stop a server's resources being exhausted by a large -number of inactive connections.<p> - -Most clients have an auto-reconnect feature when a connection is broken so -in most cases this parameter should be transparent to users.<p> - -Using this parameter with a timeout of a few minutes is recommended -for most systems.<p> - -A deadtime of zero indicates that no auto-disconnection should be performed.<p> - -.B Default: - dead time = 0<p> - -.B Example: - dead time = 15 -<a name="debug level"> -<H3>debug level (G)</H3> -The value of the parameter (an integer) allows the debug level -(logging level) to be specified in the -.B smb.conf -file. This is to give -greater flexibility in the configuration of the system.<p> - -The default will be the debug level specified on the command line.<p> - -.B Example: - debug level = 3 -<a name="default"> -<H3>default (G)</H3> -See -.B default service. -<a name="default case"> -<H3>default case (S)</H3><p> - -See the section on "NAME MANGLING" Also note the addition of "short -preserve case"<p> - -<a name="default service"> -<H3>default service (G)</H3> -A synonym for this parameter is 'default'.<p> - -This parameter specifies the name of a service which will be connected to -if the service actually requested cannot be found. Note that the square -brackets are NOT given in the parameter value (see example below).<p> - -There is no default value for this parameter. If this parameter is not given, -attempting to connect to a nonexistent service results in an error.<p> - -Typically the default service would be a public, read-only service.<p> - -Also note that as of 1.9.14 the apparent service name will be changed to -equal that of the requested service, this is very useful as it allows -you to use macros like %S to make a wildcard service.<p> - -Note also that any _ characters in the name of the service used in the -default service will get mapped to a /. This allows for interesting -things.<p> - - -.B Example: - default service = pub - - [pub] - path = /%S - <p> - -<a name="delete readonly"> -<H3>delete readonly (S)</H3> -This parameter allows readonly files to be deleted. This is not normal DOS -semantics, but is allowed by UNIX.<p> - -This option may be useful for running applications such as rcs, where UNIX -file ownership prevents changing file permissions, and DOS semantics prevent -deletion of a read only file.<p> - -.B Default: - delete readonly = No<p> - -.B Example: - delete readonly = Yes -<a name="deny hosts"> -<H3>deny hosts (S)</H3> -A synonym for this parameter is 'hosts deny'.<p> - -The opposite of 'allow hosts' - hosts listed here are NOT permitted -access to services unless the specific services have their own lists to -override this one. Where the lists conflict, the 'allow' list takes precedence.<p> - -.B Default: - none (i.e., no hosts specifically excluded)<p> - -.B Example: - deny hosts = 150.203.4. badhost.mynet.edu.au<p> - -<a name="delete veto files"> -<H3>delete veto files (S)</H3><p> - -This option is used when Samba is attempting to delete a directory -that contains one or more vetoed directories (see the 'veto files' option). -If this option is set to False (the default) then if a vetoed directory -contains any non-vetoed files or directories then the directory delete -will fail. This is usually what you want. <p> - -If this option is set to True, then Samba will attempt -to recursively delete any files and directories within the vetoed -directory. This can be useful for integration with file serving -systems such as Netatalk, which create meta-files within directories -you might normally veto DOS/Windows users from seeing (eg. .AppleDouble)<p> - -Setting 'delete veto files = True' allows these directories to be -transparently deleted when the parent directory is deleted (so long -as the user has permissions to do so).<p> - -.B Default: - delete veto files = False<p> - -.B Example: - delete veto files = True<p> - -See -.B veto files<p> - -<a name="dfree command"> -<H3>dfree command (G)</H3> -The dfree command setting should only be used on systems where a -problem occurs with the internal disk space calculations. This has -been known to happen with Ultrix, but may occur with other operating -systems. The symptom that was seen was an error of "Abort Retry -Ignore" at the end of each directory listing.<p> - -This setting allows the replacement of the internal routines to -calculate the total disk space and amount available with an external -routine. The example below gives a possible script that might fulfill -this function. <p> - -The external program will be passed a single parameter indicating a -directory in the filesystem being queried. This will typically consist -of the string "./". The script should return two integers in ascii. The -first should be the total disk space in blocks, and the second should -be the number of available blocks. An optional third return value -can give the block size in bytes. The default blocksize is 1024 bytes.<p> - -Note: Your script should NOT be setuid or setgid and should be owned by -(and writable only by) root!<p> - -.B Default: - By default internal routines for determining the disk capacity -and remaining space will be used.<p> - -.B Example: - dfree command = /usr/local/samba/bin/dfree<p> - - Where the script dfree (which must be made executable) could be<p> - -.nf - #!/bin/sh - df $1 | tail -1 | awk '{print $2" "$4}' -.fi<p> - - or perhaps (on Sys V)<p> - -.nf - #!/bin/sh - /usr/bin/df -k $1 | tail -1 | awk '{print $3" "$5}' -.fi<p> - - Note that you may have to replace the command names with full -path names on some systems. -<a name="directory"> -<H3>directory (S)</H3> -See -.B path.<p> - -<a name="directory mask"> -<H3>directory mask (S)</H3> -A synonym for this parameter is 'directory mode'.<p> - +<H3><A NAME="admin users">admin users (S)</A></H3> +This is a list of users who will be granted administrative privileges on the +share. This means that they will do all file operations as the super-user +(root).<P> +You should use this option very carefully, as any user in this list will be +able to do anything they like on the share, irrespective of file permissions.<P> +<B>Default:</B> no admin users <P> +<B>Example:</B> admin users = jason <P> + +<H3><A NAME="announce as">announce as (G)</A></H3> +This specifies what type of server nmbd will announce itself as in browse +lists. By default this is set to Windows NT. The valid options are "NT", +"Win95" or "WfW" meaining Windows NT, Windows 95 and Windows for Workgroups +respectively. Do not change this parameter unless you have a specific need to +stop Samba appearing as an NT server as this may prevent Samba servers from +participating as browser servers correctly. <P> +<B>Default:</B> announce as = NT <P> +<B>Example:</B> announce as = Win95 <P> + +<H3><A NAME="announce version">announce version (G)</A></H3> +This specifies the major and minor version numbers that nmbd will use when +announcing itself as a server. The default is 4.2. Do not change this parameter +unless you have a specific need to set a Samba server to be a downlevel +server. <P> +<B>Default:</B> announce version = 4.2 <P> +<B>Example:</B> announce version = 2.0 <P> + +<H3><A NAME="alternate permissions">alternate permissions (S)</A></H3> +This option affects the way the "read only" DOS attribute is produced for +UNIX files. If this is No then the read only bit is set for files on +writeable shares which the user cannot write to. <P> +If this is Yes then "read only" is set for files when the user write bit is +not set. <P> +The latter behaviour is useful when users copy files from each others +directories, and use a file manager that preserves permissions. Without this +option they may get annoyed as all copied files will have the "read only" +bit set. <P> +<B>Default:</B> alternate permissions = no <P> +<B>Example:</B> alternate permissions = yes <P> + +<H3><A NAME="available">available (S)</A></H3> +This parameter lets you 'turn off' a service. If 'available = no', then ALL +attempts to connect to the service will fail. Such failures are logged. <P> +<B>Default:</B> available = yes <P> +<B>Example:</B> available = no <P> + +<H3><A NAME="bind interfaces only">bind interfaces only (G)</A></H3> +This global parameter (new for 1.9.18) allows the Samba admin to limit what +interfaces on a machine will serve smb requests. If affects file service +(smbd) and name service (nmbd) in slightly different ways. <P> +For name service it causes nmbd to bind to ports 137 and 138 on the interfaces +listed in the 'interfaces' parameter. nmbd also binds to the 'all addresses' +interface (0.0.0.0) on ports 137 and 138 for the purposes of reading broadcast +messages. If this option is not set then nmbd will service name requests on +all of these sockets. If "bind interfaces only" is set then nmbd will check +the source address of any packets coming in on the broadcast sockets and +discard any that don't match the broadcast addresses of the interfaces in the +<A HREF="#interfaces">interfaces</A> parameter list. As unicast packets are +received on the other sockets it allows nmbd to refuse to serve names to +machines that send packets that arrive through any interfaces not listed in +the 'interfaces' list. IP Source address spoofing does defeat this simple +check, however so it must not be used seriously as a security feature for +nmbd. <P> +For file service it causes smbd to bind only to the interface list given in +the <A HREF="#interfaces">interfaces</A> parameter. This restricts +the networks that smbd will serve to packets coming in those interfaces. +Note that you should not use this parameter for machines that are serving +ppp or other intermittant or non-broadcast network interfaces as it will +not cope with non-permanent interfaces. <P> +<B>Default:</B> bind interfaces only = No <P> +<B>Example:</B> bind interfaces only = Yes <P> + +<H3><A NAME="browseable">browseable (S)</A></H3> +This controls whether this share is seen in the list of available shares +in a net view and in the browse list. <P> +<B>Default:</B> browseable = Yes <P> +<B>Example:</B> browseable = No <P> + +<H3><A NAME="browse list">browse list(G)</A></H3> +This controls whether the smbd will serve a browse list to a client doing a +NetServerEnum call. Normally set to Yes. You should never need to change +this. <P> +<B>Default:</B> browse list = Yes <P> + +<H3><A NAME="case sensitive">case sensitive (G)</A></H3> +Controls whether filenames are case sensitive. If they aren't then Samba must +do a filename search and match on passed names.<P> +<B>Default:</B> case sensitive = No <P> +See the discussion on <A HREF="#NAME MANGLING">NAME MANGLING</A>. <P> + +<H3><A NAME="character set">character set (G)</A></H3> +This allows smbd to map incoming characters from a DOS 850 Code page to +either a Western European (ISO8859-1) or Easter European (ISO8859-2) code page. +Normally not set, meaning no filename translation is done. <P> +<B>Default:</B> character set = <P> +<B>Example:</B> character set = iso8859-1 <P> + +<H3><A NAME="client code page">client code page (G)</A></H3> +Currently (Samba 1.9.19 and above) this may be set to one of the following +values: 437, 850, 852, 866, 932, 936, 949, or 950. It specifies the base DOS +code page that the clients accessing Samba are using. To determine this, +open a DOS command prompt and type the command "chcp". This will output +the code page. The default for USA MS-DOS, Windows 95, and Windows NT releases +is code page 437. The default for western european releases of the above +operating systems is code page 850. <P> +This parameter co-operates with the <A HREF="#valid chars">valid chars</A> +parameter in determining what characters are valid in filenames +and how capitalization is done. It has been added as a convenience for +clients whose code page is either 437 or 850 so a convoluted "valid chars" +string does not have to be determined. If you set both this parameter and +the "valid chars" parameter the "client code page" parameter MUST be +set before the "valid chars" in the smb.conf file. The "valid chars" string +will then augment the character settings in the "client code page" parameter. +<P> +If "client code page" is set to a value other than those listed above, it will +default to 850. <P> +See also : <A HREF="#valid chars">valid chars</A>. <P> +<B>Default:</B> client code page = 850 <P> +<B>Example:</B> client code page = 437 <P> + +<H3><A NAME="coding system">coding system (G)</A></H3> +<B>Default:</B> coding system = <P> + +<H3><A NAME="comment">comment (S)</A></H3> +This is a text field that is seen next to a share when a client does a net +view to list what shares are available. <P> +If you want to set the string that is displayed next to the machine name then +see the <A HREF="#server string">server string</A> command. <P> +<B>Default:</B> No comment string <P> +<B>Example:</B> comment = Fred's Files <P> + +<H3><A NAME="create mask">create mask (S)</A></H3> +A synonym for this parameter is 'create mode'. <P> +When a file is created, the neccessary permissions are calculated according +to the mapping from DOS modes to UNIX permissions, and the resulting UNIX +mode is then bit-wise 'AND'ed with this parameter. This parameter may be +thought of as a bit-wise MASK for the UNIX modes of a file. Any bit *not* set +here will be removed from the modes set on a file when it is created. <P> +The default value of this parameter removes the 'group' and 'other' write and +execute bits from the UNIX modes. <P> +Following this Samba will bit-wise 'OR' the UNIX mode created from this +parameter with the value of the +<A HREF="#force create mode">force create mode</A> +parameter which is set to 000 by default. <P> +For Samba 1.9.17 and above this parameter no longer affects directory modes. +See the parameter <A HREF="#directory mask">directory mask</A> for details. <P> +See also the <A HREF="#force create mode">force create mode</A> parameter for +forcing particular mode bits to be set on created files. See also the +<A HREF="#directory mask">directory mask</A> +parameter for masking mode bits on created directories. <P> +<B>Default:</B> create mask = 0744 <P> +<B>Example:</B> create mask = 0775 <P> + +<H3><A NAME="deadtime">deadtime (G)</A></H3> +The value of the parameter (a decimal integer) represents the number of +minutes of inactivity before a connection is considered dead, and it is +disconnected. The deadtime only takes effect if the number of open files is +zero. <P> +This is useful to stop a server's resources being exhausted by a large number +of inactive connections. <P> +Most clients have an auto-reconnect feature when a connection is broken so in +most cases this parameter should be transparent to users. <P> +Using this parameter with a timeout of a few minutes is recommended for most +systems. <P> +A deadtime of zero indicates that no auto-disconnection should be performed.<P> +<B>Default:</B> deadtime = 0 <P> +<B>Example:</B> deadtime = 15 + +<H3><A NAME="default case">default case (S)</A></H3> +Controls what the default case (upper/lower) is for new filenames.<P> +See the section on <A HREF="#NAME MANGLING">NAME MANGLING</A> <P> +<B>Default:</B> default case = lower <P> +<B>Example:</B> default case = upper <P> + +<H3><A NAME="default service">default service (G)</A></H3> A synonym for this +parameter is 'default'. <P> +This parameter specifies the name of a service which will be connected to if +the service actually requested cannot be found. Note that the square brackets +are NOT given in the parameter value (see example below). <P> +There is no default value for this parameter. If this parameter is not given, +attempting to connect to a nonexistent service results in an error. <P> +Typically the default service would be a public, read-only service. <P> +Also note that as of 1.9.14 the apparent service name will be changed to be +that of the requested service, this is very useful as it allows +you to use macros like %S to make a wildcard service. <P> +Note also that any _ characters in the name of the service used in the default +service will get mapped to a /. This allows for interesting things. <P> +<B>Example:</B> default service = pub<P> +<pre> +[pub] + path = /%S +</pre> + +<H3><A NAME="delete readonly">delete readonly (S)</A></H3> +This parameter allows readonly files to be deleted. This is not normal DOS +semantics, but is allowed by UNIX. <P> +This option may be useful for running applications such as rcs, where UNIX +file ownership prevents changing file permissions, and DOS semantics prevent +deletion of a read only file. <P> +<B>Default:</B> delete readonly = No <P> +<B>Example:</B> delete readonly = Yes <P> + +<H3><A NAME="delete veto files">delete veto files (S)</A></H3> +This option is used when Samba is attempting to delete a directory that +contains one or more vetoed directories (see the +<A HREF="#veto files">veto files</A> option). If this option is set to No +(the default) then if a vetoed directory contains any non-vetoed files or +directories then the directory delete will fail. This is usually what you +want. <P> +If this option is set to Yes, then Samba will attempt to recursively delete +any files and directories within the vetoed directory. This can be useful +for integration with file serving systems such as Netatalk, which create +meta-files within directories you might normally veto DOS/Windows users +from seeing (eg. .AppleDouble) <P> +Setting 'delete veto files = Yes' allows these directories to be +transparently deleted when the parent directory is deleted (so long as the +user has permissions to do so). <P> +<B>Default:</B> delete veto files = No <P> +<B>Example:</B> delete veto files = Yes <P> +See <A HREF="#veto files">veto files</A> <P> + +<H3><A NAME="dfree command">dfree command (G)</A></H3> +The dfree command setting should only be used on systems where a problem +occurs with the internal disk space calculations. This has been known to +happen with Ultrix, but may occur with other operating systems. The symptom +that was seen was an error of "Abort Retry Ignore" at the end of each +directory listing. <P> +This setting allows the replacement of the internal routines to calculate the +total disk space and amount available with an external routine. The example +below gives a possible script that might fulfill this function. <P> +The external program will be passed a single parameter indicating a directory +in the filesystem being queried. This will typically consist of the string +"./". The script should return two integers in ascii. The first should be the +total disk space in blocks, and the second should be the number of available +blocks. An optional third return value can give the block size in bytes. The +default blocksize is 1024 bytes. <P> +Note: Your script should NOT be setuid or setgid and should be owned by +(and writable only by) root! <P> +<B>Default:</B> By default internal routines for determining the disk capacity +and remaining space will be used. <P> +<B>Example:</B> dfree command = /usr/local/samba/bin/dfree <P> +Where the script dfree (which must be made executable) could be <P> +<pre> + #!/bin/sh + df $1 | tail -1 | awk '{print $2" "$4}' +</pre> +or perhaps (on Sys V) <P> +<pre> + #!/bin/sh + /usr/bin/df -k $1 | tail -1 | awk '{print $3" "$5}' +</pre> +Note that you may have to replace the command names with full path names on +some systems. <P> + +<H3><A NAME="directory mask">directory mask (S)</A></H3> +A synonym for this parameter is 'directory mode'. <P> This parameter is the octal modes which are used when converting DOS modes -to UNIX modes when creating UNIX directories.<p> - -When a directory is created, the neccessary permissions are calculated -according to the mapping from DOS modes to UNIX permissions, and -the resulting UNIX mode is then bit-wise 'AND'ed with this parameter. -This parameter may be thought of as a bit-wise MASK for the UNIX -modes of a directory. Any bit *not* set here will be removed from the -modes set on a directory when it is created.<p> - -The default value of this parameter removes the 'group' and 'other' -write bits from the UNIX mode, allowing only the user who owns the -directory to modify it.<p> - -Following this Samba will bit-wise 'OR' the UNIX mode created from -this parameter with the value of the "force directory mode" parameter. -This parameter is set to 000 by default (ie. no extra mode bits are added).<p> - -See the "force directory mode" parameter to cause particular mode -bits to always be set on created directories.<p> - -See also the "create mode" parameter for masking mode bits on created -files.<p> - -.B Default: - directory mask = 0755<p> - -.B Example: - directory mask = 0775<p> - -<a name="directory mode"> -<H3>directory mode (S)</H3> -See -.B directory mask.<p> - -<a name="dns proxy"> -<H3>dns proxy (G)</H3><p> - -Specifies that nmbd should (as a WINS server), on finding that a NetBIOS -name has not been registered, treat the NetBIOS name word-for-word as -a DNS name.<p> - -Note that the maximum length for a NetBIOS name is 15 -characters, so the DNS name (or DNS alias) can likewise only be 15 -characters, maximum.<p> - -Note also that nmbd will block completely until the DNS name is resolved. -This will result in temporary loss of browsing and WINS services. -Enable this option only if you are certain that DNS resolution is fast, -or you can live with the consequences of periodic pauses in nmbd service.<p> - -.B Default: - dns proxy = yes<p> - -<a name="domain controller"> -<H3>domain controller (G)</H3><p> - -Specifies the DNS name or IP address of the machine to refer domain -logons from Win95 machines to. You should never need to set this parameter.<p> - -.B Default: - domain controller = no<p> - -<a name="domain logons"> -<H3>domain logons (G)</H3><p> +to UNIX modes when creating UNIX directories. <P> +When a directory is created, the neccessary permissions are calculated +according to the mapping from DOS modes to UNIX permissions, and the resulting +UNIX mode is then bit-wise 'AND'ed with this parameter. This parameter may be +thought of as a bit-wise MASK for the UNIX modes of a directory. Any bit *not* +set here will be removed from the modes set on a directory when it is +created. <P> +The default value of this parameter removes the 'group' and 'other' write +bits from the UNIX mode, allowing only the user who owns the directory to +modify it. <P> +Following this Samba will bit-wise 'OR' the UNIX mode created from this +parameter with the value of the +<A HREF="#force directory mode">force directory mode</A> +parameter. This parameter is set to 000 by default (ie. no extra mode bits +are added). <P> +See the <A HREF="#force directory mode">force directory mode</A> +parameter to cause particular mode bits to always be set on created +directories. <P> +See also the <A HREF="#create mask">create mask</A> parameter +for masking mode bits on created files. <P> +<B>Default:</B> directory mask = 0755 <P> +<B>Example:</B> directory mask = 0775 <P> + +<H3><A NAME="dns proxy">dns proxy (G)</A></H3> +Specifies that nmbd should (as a WINS server), on finding that a NetBIOS name +has not been registered, treat the NetBIOS name word-for-word as a DNS name.<P> +Note that the maximum length for a NetBIOS name is 15 characters, so the DNS +name (or DNS alias) can likewise only be 15 characters, maximum. <P> +<B>Default:</B> dns proxy = yes <P> + +<H3><A NAME="domain admin users">domain admin users (G)</A></H3> +<P> + +<H3><A NAME="domain controller">domain controller (G)</A></H3> +<h4>This is wrong</h4> +Specifies the DNS name or IP address of the machine to refer domain logons +from Win95 machines to. You should never need to set this parameter. <P> +<B>Default:</B> domain controller = no <P> + +<H3><A NAME="domain groups">domain groups (G)</A></H3> +<P> -If set to true, the Samba server will serve Windows 95 domain logons -for the workgroup it is in. For more details on setting up this feature -see the file DOMAINS.txt in the Samba source documentation directory.<p> +<H3><A NAME="domain guest users">domain guest users (G)</A></H3> +<P> -.B Default: - domain logons = no<p> +<H3><A NAME="domain hosts allow">domain hosts allow (G)</A></H3> +<P> -<a name="domain master"> -<H3>domain master (G)</H3><p> +<H3><A NAME="domain hosts deny">domain hosts deny (G)</A></H3> +<P> -Enable WAN-wide browse list collation. Local master browsers on +<H3><A NAME="domain logons">domain logons (G)</A></H3> +If set to Yes, the Samba server will serve Windows 95 domain +logons for the workgroup it is in. For more details on setting up this +feature see the file DOMAINS.txt in the Samba source documentation directory. +<P> +<B>Default:</B> domain logons = no <P> + +<H3><A NAME="domain master">domain master (G)</A></H3> +Enable WAN-wide browse list collation. Local master browsers on broadcast-isolated subnets will give samba their local browse lists, and -ask for a complete copy of the browse list for the whole wide area network. -Browser clients will then contact their local master browser, and will -receive the domain-wide browse list, instead of just the list for their -broadcast-isolated subnet.<p> - -.B Default: - domain master = no<p> - -<a name="dont descend"> -<H3>dont descend (S)</H3> -There are certain directories on some systems (eg., the /proc tree under -Linux) that are either not of interest to clients or are infinitely deep -(recursive). This parameter allows you to specify a comma-delimited list -of directories that the server should always show as empty.<p> - -Note that Samba can be very fussy about the exact format of the "dont -descend" entries. For example you may need "./proc" instead of just -"/proc". Experimentation is the best policy :-)<p> - -.B Default: - none (i.e., all directories are OK to descend)<p> - -.B Example: - dont descend = /proc,/dev<p> - -<a name="dos filetimes"> -<H3>dos filetimes (S)</H3> -Under DOS and Windows, if a user can write to a file they can change -the timestamp on it. Under POSIX semantics, only the owner of the file -or root may change the timestamp. By default, Samba runs with POSIX -semantics and refuses to change the timestamp on a file if the user -smbd is acting on behalf of is not the file owner. Setting this option -to True allows DOS semantics and smbd will change the file timstamp as -DOS requires. This is a correct implementation of a previous compile-time -options (UTIME_WORKAROUND) which was broken and is now removed.<p> - -.B Default: - dos filetimes = False<p> - -.B Example: - dos filetimes = True<p> - -<a name="dos filetime resolution"> -<H3>dos filetime resolution (S)</H3> -Under the DOS and Windows FAT filesystem, the finest granulatity on -time resolution is two seconds. Setting this parameter for a share -causes Samba to round the reported time down to the nearest two -second boundary when a query call that requires one second resolution -is made to smbd. <p> +ask for a complete copy of the browse list for the whole wide area network. +Browser clients will then contact their local master browser, and will +receive the domain-wide browse list, instead of just the list for their +broadcast-isolated subnet. There should only be one "domain master" for +each workgroup name.<P> +<B>Default:</B> domain master = no <P> + +<H3><A NAME="domain other sid">domain other sid (G)</A></H3> +<P> + +<H3><A NAME="domain sid">domain sid (G)</A></H3> +<P> + +<H3><A NAME="dont descend">dont descend (S)</A></H3> +There are certain directories on some systems (eg., the /proc tree under Linux) +that are either not of interest to clients or are infinitely deep (recursive). +This parameter allows you to specify a comma-delimited list of directories +that the server should always show as empty. <P> +Note that Samba can be very fussy about the exact format of the "dont descend" +entries. For example you may need "./proc" instead of just "/proc". +Experimentation is the best policy :-) <P> +<B>Default:</B> none (i.e., all directories are OK to descend) <P> +<B>Example:</B> dont descend = /proc,/dev <P> + +<H3><A NAME="dos filetimes">dos filetimes (S)</A></H3> +Under DOS and Windows, if a user can write to a file they can change the +timestamp on it. Under POSIX semantics, only the owner of the file or root +may change the timestamp. By default, Samba runs with POSIX semantics and +refuses to change the timestamp on a file if the user smbd is acting on +behalf of is not the file owner. Setting this option to Yes allows DOS +semantics and smbd will change the file timstamp as DOS requires. This is a +correct implementation of a previous compile-time options (UTIME_WORKAROUND) +which was broken and is now removed. <P> +<B>Default:</B> dos filetimes = No <P> +<B>Example:</B> dos filetimes = Yes <P> + +<H3><A NAME="dos filetime resolution">dos filetime resolution (S)</A></H3> +Under the DOS and Windows FAT filesystem, the finest granulatity on time +resolution is two seconds. Setting this parameter for a share causes Samba +to round the reported time down to the nearest two second boundary when a +query call that requires one second resolution is made to smbd. <P> +This option is mainly used as a compatibility option for Visual C++ when +used against Samba shares. If oplocks are enabled on a share, Visual C++ +uses two different time reading calls to check if a file has changed since +it was last read. One of these calls uses a one-second granularity, the +other uses a two second granularity. As the two second call rounds any odd +second down, then if the file has a timestamp of an odd number of seconds +then the two timestamps will not match and Visual C++ will keep reporting +the file has changed. Setting this option causes the two timestamps to +match, and Visual C++ is happy. <P> +<B>Default:</B> dos filetime resolution = No <P> +<B>Example:</B> dos filetime resolution = Yes <P> + +<H3><A NAME="encrypt passwords">encrypt passwords (G)</A></H3> +This boolean controls whether encrypted passwords will be negotiated with +the client. Note that Windows NT 4.0 SP3 and above will by default expect +encrypted passwords unless a registry entry is changed. To use encrypted +passwords in Samba see the file docs/ENCRYPTION.txt. <P> +<B>Default:</B> encrypt passwords = No <P> + +<H3><A NAME="exec">exec (S)</A></H3> +A synonym for this is preexec. <P> +This option specifies a command to be run whenever a connection is made to +the service. It takes the usual substitutions. <P> +An interesting example is to send the users a welcome message every time +they log in. Maybe a message of the day? Here is an example: <P> +exec = csh -c 'echo \"Welcome to %S!\" | \ /usr/local/samba/bin/smbclient -M %m -I %I' & <P> +Of course, this could get annoying after a while :-) <P> +See also <A HREF="#postexec">postexec</A> <P> +<B>Default:</B> none (no command executed) <P> +<B>Example:</B> exec = echo \"%u connected to %S from %m (%I)\" >> /tmp/log <P> + +<H3><A NAME="fake directory create times">fake directory create times (S)</A></H3> +NTFS and Windows VFAT file systems keep a create time for all files and +directories. This is not the same as the ctime - status change time - that +Unix keeps, so Samba by default reports the earliest of the various times +Unix does keep. Setting this parameter for a share causes Samba to always +report midnight 1-1-1980 as the create time for directories. <P> This option is mainly used as a compatibility option for Visual C++ -when used against Samba shares. If oplocks are enabled on a share, -Visual C++ uses two different time reading calls to check if a file -has changed since it was last read. One of these calls uses a one-second -granularity, the other uses a two second granularity. As the two second -call rounds any odd second down, then if the file has a timestamp of an -odd number of seconds then the two timestamps will not match and Visual -C++ will keep reporting the file has changed. Setting this option causes -the two timestamps to match, and Visual C++ is happy.<p> - -.B Default: - dos filetime resolution = False<p> - -.B Example: - dos filetime resolution = True<p> - -<a name="encrypt passwords"> -<H3>encrypt passwords (G)</H3><p> - -This boolean controls whether encrypted passwords will be negotiated -with the client. Note that this option has no effect if you haven't -compiled in the necessary des libraries and encryption code. It -defaults to no.<p> - -<a name="exec"> -<H3>exec (S)</H3><p> - -This is an alias for preexec<p> - -<a name="fake oplocks"> -<H3>fake oplocks (S)</H3><p> - -Oplocks are the way that SMB clients get permission from a server to -locally cache file operations. If a server grants an oplock -(opportunistic lock) then the client is free to assume that it is the -only one accessing the file and it will aggressively cache file -data. With some oplock types the client may even cache file open/close -operations. This can give enormous performance benefits.<p> - -When you set "fake oplocks = yes" Samba will always grant oplock -requests no matter how many clients are using the file. <p> - -By enabling this option on all read-only shares or shares that you know -will only be accessed from one client at a time you will see a big -performance improvement on many operations. If you enable this option -on shares where multiple clients may be accessing the files read-write -at the same time you can get data corruption. Use this option -carefully! <p> - -It is generally much better to use the real oplock support except for -physically read-only media such as CDROMs.<p> - -This option is disabled by default.<p> - -<a name="follow symlinks"> -<H3>follow symlinks (S)</H3><p> - -This parameter allows the Samba administrator to stop smbd from -following symbolic links in a particular share. Setting this -parameter to "No" prevents any file or directory that is a -symbolic link from being followed (the user will get an error). -This option is very useful to stop users from adding a symbolic -link to /etc/pasword in their home directory for instance. -However it will slow filename lookups down slightly.<p> - -This option is enabled (ie. smbd will follow symbolic links) -by default.<p> - -<a name="force create mode"> -<H3>force create mode (S)</H3> -This parameter specifies a set of UNIX mode bit permissions that -will *always* be set on a file created by Samba. This is done -by bitwise 'OR'ing these bits onto the mode bits of a file that -is being created. The default for this parameter is (in octel) -000. The modes in this parameter are bitwise 'OR'ed onto the -file mode after the mask set in the "create mask" parameter -is applied.<p> - -See also the parameter "create mask" for details on masking mode -bits on created files.<p> - -.B Default: - force create mode = 000<p> - -.B Example: - force create mode = 0755<p> - -would force all created files to have read and execute permissions -set for 'group' and 'other' as well as the read/write/execute bits -set for the 'user'.<p> - -<a name="force directory mode"> -<H3>force directory mode (S)</H3> -This parameter specifies a set of UNIX mode bit permissions that -will *always* be set on a directory created by Samba. This is done -by bitwise 'OR'ing these bits onto the mode bits of a directory that -is being created. The default for this parameter is (in octel) -0000 which will not add any extra permission bits to a created -directory. This operation is done after the mode mask in the parameter -"directory mask" is applied.<p> - -See also the parameter "directory mask" for details on masking mode -bits on created directories.<p> - -.B Default: - force directory mode = 000<p> - -.B Example: - force directory mode = 0755<p> - -would force all created directories to have read and execute permissions -set for 'group' and 'other' as well as the read/write/execute bits -set for the 'user'.<p> - -<a name="force group"> -<H3>force group (S)</H3> -This specifies a group name that all connections to this service -should be made as. This may be useful for sharing files.<p> - -.B Default: - no forced group<p> - -.B Example: - force group = agroup<p> - -<a name="force user"> -<H3>force user (S)</H3> -This specifies a user name that all connections to this service -should be made as. This may be useful for sharing files. You should -also use it carefully as using it incorrectly can cause security -problems.<p> - -This user name only gets used once a connection is established. Thus -clients still need to connect as a valid user and supply a valid -password. Once connected, all file operations will be performed as the -"forced user", not matter what username the client connected as.<p> - -.B Default: - no forced user<p> - -.B Example: - force user = auser<p> - -<a name="getwd cache"> -<H3>getwd cache (G)</H3> -This is a tuning option. When this is enabled a cacheing algorithm will -be used to reduce the time taken for getwd() calls. This can have a -significant impact on performance, especially when widelinks is False.<p> - -.B Default: - getwd cache = No<p> - -.B Example: - getwd cache = Yes<p> - -<a name="group"> -<H3>group (S)</H3> -This is an alias for "force group" and is only kept for compatibility -with old versions of Samba. It may be removed in future versions.<p> - -<a name="guest account"> -<H3>guest account (S)</H3> -This is a username which will be used for access to services which are -specified as 'guest ok' (see below). Whatever privileges this user has -will be available to any client connecting to the guest -service. Typically this user will exist in the password file, but will -not have a valid login. If a username is specified in a given service, -the specified username overrides this one.<p> - -One some systems the account "nobody" may not be able to print. Use -another account in this case. You should test this by trying to log in -as your guest user (perhaps by using the "su \-" command) and trying to -print using -.BR lpr .<p> - -Note that as of version 1.9 of Samba this option may be set -differently for each service.<p> - -.B Default: - specified at compile time<p> - -.B Example: - guest account = nobody -<a name="guest ok"> -<H3>guest ok (S)</H3> -See -.B public. -<a name="guest only"> -<H3>guest only (S)</H3> -If this parameter is 'yes' for a service, then only guest connections to the -service are permitted. This parameter will have no affect if "guest ok" or -"public" is not set for the service.<p> - -See the section below on user/password validation for more information about -this option.<p> - -.B Default: - guest only = no<p> - -.B Example: - guest only = yes -<a name="hide dot files"> -<H3>hide dot files (S)</H3> -This is a boolean parameter that controls whether files starting with -a dot appear as hidden files.<p> - -.B Default: - hide dot files = yes<p> - -.B Example: - hide dot files = no<p> - - -<a name="hide file"> -<H3>hide files(S)</H3> -This is a list of files or directories that are not visible but are -accessible. The DOS 'hidden' attribute is applied to any files or -directories that match.<p> - -Each entry in the list must be separated by a "/", which allows spaces -to be included in the entry. '*' and '?' can be used to specify multiple -files or directories as in DOS wildcards.<p> - -Each entry must be a unix path, not a DOS path and must not include the -unix directory separator "/".<p> - -Note that the case sensitivity option is applicable in hiding files.<p> - -Setting this parameter will affect the performance of Samba, as -it will be forced to check all files and directories for a match -as they are scanned.<p> - -See also "hide dot files", "veto files" and "case sensitive"<p> - -.B Default - No files or directories are hidden by this option (dot files are - hidden by default because of the "hide dot files" option).<p> - -.B Example - hide files = /.*/DesktopFolderDB/TrashFor%m/resource.frk/<p> - -The above example is based on files that the Macintosh client (DAVE) -creates for internal use, and also still hides all files beginning with -a dot.<p> - -<a name="homedir map"> -<H3>homedir map (G)</H3> -If "nis homedir" is true, this parameter specifies the NIS (or YP) map -from which the server for the user's home directory should be extracted. -At present, only the Sun auto.home map format is understood. The form of -the map is:<p> - -username server:/some/file/system<p> - -and the program will extract the servername from before the first ':'. -There should probably be a better parsing system that copes with different -map formats and also Amd (another automounter) maps.<p> - -NB: The -DNETGROUP option is required in the Makefile for option to work -and on some architectures the line -lrpcsvc needs to be added to the -LIBSM variable. This is required for Solaris 2, FreeBSD and HPUX.<p> - -See also "nis homedir"<p> - -.B Default: - homedir map = auto.home<p> - -.B Example: - homedir map = amd.homedir -<a name="hosts allow"> -<H3>hosts allow (S)</H3> -See -.B allow hosts. -<a name="hosts deny"> -<H3>hosts deny (S)</H3> -See -.B deny hosts.<p> - -<a name="hosts equiv"> -<H3>hosts equiv (G)</H3> -If this global parameter is a non-null string, it specifies the name of -a file to read for the names of hosts and users who will be allowed access -without specifying a password.<p> - -This is not be confused with -.B allow hosts -which is about hosts access to services and is more useful for guest services. -.B hosts equiv -may be useful for NT clients which will not supply passwords to samba.<p> - -NOTE: The use of hosts.equiv can be a major security hole. This is -because you are trusting the PC to supply the correct username. It is -very easy to get a PC to supply a false username. I recommend that the -hosts.equiv option be only used if you really know what you are doing, -or perhaps on a home network where you trust your wife and kids :-)<p> - -.B Default - No host equivalences<p> - -.B Example - hosts equiv = /etc/hosts.equiv<p> - -<a name="include"> -<H3>include (G)</H3><p> - -This allows you to include one config file inside another. The file is -included literally, as though typed in place.<p> - -It takes the standard substitutions, except %u, %P and %S<p> - -<a name="interfaces"> -<H3>interfaces (G)</H3><p> - -This option allows you to setup multiple network interfaces, so that -Samba can properly handle browsing on all interfaces.<p> - -The option takes a list of ip/netmask pairs. The netmask may either be -a bitmask, or a bitlength. <p> - -For example, the following line:<p> - -interfaces = 192.168.2.10/24 192.168.3.10/24<p> - -would configure two network interfaces with IP addresses 192.168.2.10 -and 192.168.3.10. The netmasks of both interfaces would be set to -255.255.255.0. <p> - -You could produce an equivalent result by using:<p> - -interfaces = 192.168.2.10/255.255.255.0 192.168.3.10/255.255.255.0<p> - -if you prefer that format.<p> - -If this option is not set then Samba will attempt to find a primary -interface, but won't attempt to configure more than one interface.<p> - -<a name="invalid users"> -<H3>invalid users (S)</H3> -This is a list of users that should not be allowed to login to this -service. This is really a "paranoid" check to absolutely ensure an -improper setting does not breach your security.<p> - -A name starting with @ is interpreted as a UNIX group.<p> - -The current servicename is substituted for %S. This is useful in the -[homes] section.<p> - -See also "valid users"<p> - -.B Default - No invalid users<p> - -.B Example - invalid users = root fred admin @wheel<p> - -<a name="keepalive"> -<H3>keepalive (G)</H3> +when used against Samba shares. Visual C++ generated makefiles have the +object directory as a dependency for each object file, and a make rule +to create the directory. Also, when NMAKE compares timestamps it uses the +creation time when examining a directory. Thus the object directory will +be created if it does not exist, but once it does exist it will always +have an earlier timestamp than the object files it contains. <P> +However, Unix time semantics mean that the create time reported by Samba +will be updated whenever a file is created or deleted in the directory. +NMAKE therefore finds all object files in the object directory bar the last +one built are out of date compared to the directory and rebuilds them. +Enabling this option ensures directories always predate their contents and +an NMAKE build will proceed as expected. <P> +<B>Default:</B> fake directory create times = No <P> +<B>Example:</B> fake directory create times = Yes <P> + +<H3><A NAME="fake oplocks">fake oplocks (S)</A></H3> +Oplocks are the way that SMB clients get permission from a server to locally +cache file operations. If a server grants an oplock (opportunistic +lock) then the client is free to assume that it is the only one accessing +the file and it will aggressively cache file data. With some oplock types +the client may even cache file open/close operations. This can give enormous +performance benefits. <P> +When you set "fake oplocks = yes" Samba will always grant oplock requests +no matter how many clients are using the file. <P> +By enabling this option on all read-only shares or shares that you know +will only be accessed from one client at a time you will see a big performance +improvement on many operations. If you enable this option on shares where +multiple clients may be accessing the files read-write at the same time +you can get data corruption. Use this option carefully! <P> +It is generally much better to use the real oplock support except for +physically read-only media such as CDROMs. <P> +<B>Default:</B> fake oplocks = No <P> +<B>Example:</B> fake oplocks = Yes <P> + +<H3><A NAME="follow symlinks">follow symlinks (S)</A></H3> +This parameter allows the Samba administrator to stop smbd from following +symbolic links in a particular share. Setting this parameter to "No" prevents +any file or directory that is a symbolic link from being followed (the +user will get an error). This option is very useful to stop users from +adding a symbolic link to /etc/pasword in their home directory for instance. +However it will slow filename lookups down slightly. <P> +<B>Default:</B> follow symlinks = Yes (smbd will follow symbolic links)<P> + +<H3><A NAME="force create mode">force create mode (S)</A></H3> +This parameter specifies a set of UNIX mode bit permissions that will *always* +be set on a file created by Samba. This is done by bitwise 'OR'ing these +bits onto the mode bits of a file that is being created. The modes in this +parameter are bitwise 'OR'ed onto the file mode after the mask set in the +<A HREF="#create mask">create mask</A> parameter is applied. <P> +See also the parameter <A HREF="#create mask">create mask</A> for details +on masking mode bits on created files. <P> +<B>Default:</B> force create mode = 000 <P> +<B>Example:</B> force create mode = 0755 <P> +would force all created files to have read and execute permissions set for +'group' and 'other' as well as the read/write/execute bits set for the +'user'. <P> + +<H3><A NAME="force directory mode">force directory mode (S)</A></H3> +This parameter specifies a set of UNIX mode bit permissions that will *always* +be set on a directory created by Samba. This is done by bitwise 'OR'ing these +bits onto the mode bits of a directory that is being created. The default for +this parameter is (in octel) 0000 which will not add any extra permission bits +to a created directory. This operation is done after the mode mask in the +parameter <A HREF="#directory mask">directory mask</A> is applied. <P> +See also the parameter <A HREF="#directory mask">directory mask</A> +for details on masking mode bits on created directories. <P> +<B>Default:</B> force directory mode = 000 <P> +<B>Example:</B> force directory mode = 0755 <P> +would force all created directories to have read and execute permissions +set for 'group' and 'other' as well as the read/write/execute bits set for +the 'user'. <P> + +<H3><A NAME="force group">force group (S)</A></H3> +This specifies a group name that all connections to this service should be +made as. This may be useful for sharing files. <P> +<B>Default:</B> no forced group <P> +<B>Example:</B> force group = agroup <P> + +<H3><A NAME="force user">force user (S)</A></H3> +This specifies a user name that all connections to this service should be +made as. This may be useful for sharing files. You should also use it +carefully as using it incorrectly can cause security problems. <P> +This user name only gets used once a connection is established. Thus clients +still need to connect as a valid user and supply a valid password. Once +connected, all file operations will be performed as the "forced user", +no matter what username the client connected as. <P> +<B>Default:</B> no forced user <P> +<B>Example:</B> force user = auser <P> + +<H3><A NAME="getwd cache">getwd cache (G)</A></H3> +This is a tuning option. When this is enabled a cacheing algorithm will be +used to reduce the time taken for getwd() calls. This can have a significant +impact on performance, especially when widelinks is No. <P> +<B>Default:</B>getwd cache = No <P> +<B>Example:</B>getwd cache = Yes <P> + +<H3><A NAME="guest account">guest account (S)</A></H3> +This is a username which will be used for access to services which are +specified as <A HREF="#guest ok">guest ok</A>. Whatever privileges this +user has will be available to any client connecting to the guest service. +Typically this user will exist in the password file, but will not have a +valid login. If a username is specified in a given service, the specified +username overrides this one. <P> +One some systems the account "nobody" may not be able to print. Use another +account in this case. You should test this by trying to log in as your +guest user (perhaps by using the "su -" command) and trying to print using +<B>lpr</B>. <P> +Note that as of version 1.9 of Samba this option may be set differently +for each service. <P> +<B>Default:</B>specified at compile time <P> +<B>Example:</B>guest account = nobody + +<H3><A NAME="guest ok">guest ok (S)</A></H3> +A synonym for this parameter is 'public'. <P> +If this parameter is 'Yes' for a service, then no password is required +to connect to the service. Privileges will be those of the guest account. <P> +See the section below on +<A HREF="#USERNAME/PASSWORD VALIDATION">USERNAME/PASSWORD VALIDATION</A> +for more information about this option. <P> +<B>Default:</B> guest ok = No <P> +<B>Example:</B> guest ok = Yes + +<H3><A NAME="guest only">guest only (S)</A></H3> +If this parameter is 'Yes' for a service, then only guest connections to the +service are permitted. This parameter will have no affect if +<A HREF="#guest ok">guest ok</A> is not set for the service. <P> +See the section below on +<A HREF="#USERNAME/PASSWORD VALIDATION">USERNAME/PASSWORD VALIDATION</A> for +more information about this option. <P> +<B>Default:</B> guest only = No <P> +<B>Example:</B> guest only = Yes + +<H3><A NAME="hide dot files">hide dot files (S)</A></H3> +This is a boolean parameter that controls whether files starting with a dot +appear as hidden files. <P> +<B>Default:</B> hide dot files = Yes <P> +<B>Example:</B> hide dot files = No <P> + +<H3><A NAME="hide files">hide files (S)</A></H3> +This is a list of files or directories that are not visible but are accessible. +The DOS 'hidden' attribute is applied to any files or directories that match.<P> +Each entry in the list must be separated by a "/", which allows spaces +to be included in the entry. '*' and '?' can be used to specify multiple +files or directories as in DOS wildcards. <P> +Each entry must be a unix path, not a DOS path and must not include the unix +directory separator "/". <P> +Note that the case sensitivity option is applicable in hiding files. <P> +Setting this parameter will affect the performance of Samba, as it will +be forced to check all files and directories for a match as they are scanned.<P> +See also <A HREF="#hide dot files">hide dot files</A>, +<A HREF="#veto files">veto files</A> and +<A HREF="#case sensitive">case sensitive</A> <P> +<B>Default</B> No files or directories are hidden by this option +(dot files are hidden by default because of the "hide dot files" option). <P> +<B>Example</B> hide files = /.*/DesktopFolderDB/TrashFor%m/resource.frk/ <P> +The above example is based on files that the Macintosh client (DAVE) creates +for internal use, and also still hides all files beginning with a dot. <P> + +<H3><A NAME="homedir map">homedir map (G)</A></H3> +If <A HREF="#NIS homedir">NIS homedir</A> is Yes, this parameter specifies +the NIS (or YP) map from which the server for the user's home directory should +be extracted. At present, only the Sun auto.home map format is understood. +The form of the map is: <P> + username server:/some/file/system <P> +and the program will extract the servername from before the first ':'. There +should probably be a better parsing system that copes with different map +formats and also Amd (another automounter) maps. <P> +NB: The -DNETGROUP option is required in the Makefile for option +to work and on some architectures the line -lrpcsvc needs to be added to +the LIBSM variable. This is required for Solaris 2, FreeBSD and HPUX. <P> +See also <A HREF="#NIS homedir">NIS homedir</A> <P> +<B>Default:</B> homedir map = auto.home <P> +<B>Example:</B> homedir map = amd.homedir + +<H3><A NAME="hosts allow">hosts allow (S)</A></H3> +A synonym for this parameter is 'allow hosts'. <P> +This parameter is a comma delimited set of hosts which are permitted to access +a service. <P> +If specified in the [global] section then it will apply to all services, +regardless of whether the individual service has a different setting. <P> +You can specify the hosts by name or IP number. For example, you could restrict +access to only the hosts on a Class C subnet with something like +"hosts allow = 150.203.5.". <P> +You can also specify hosts by network/netmask pairs and by netgroup names +if your system supports netgroups. The EXCEPT keyword can also be used +to limit a wildcard list. The following examples may provide some help: <P> +Example 1: allow all IPs in 150.203.*.* except one <P> + hosts allow = 150.203. EXCEPT 150.203.6.66 <P> +Example 2: allow hosts that match the given network/netmask <P> + hosts allow = 150.203.15.0/255.255.255.0 <P> +Example 3: allow a couple of hosts <P> + hosts allow = lapland, arvidsjaur <P> +Example 4: allow only hosts in netgroup "foonet" or localhost, but deny +access from one particular host <P> + hosts allow = @foonet, localhost<P> + hosts deny = pirate <P> +Note that access still requires suitable user-level passwords. <P> +See <B>testparm</B>(1) for a way of testing your host access to see if it +does what you expect. <P> +<B>Default:</B> none (i.e., all hosts permitted access) <P> +<B>Example:</B> hosts allow = 150.203.5. myhost.mynet.edu.au<P> + +<H3><A NAME="hosts deny">hosts deny (S)</A></H3> +A synonym for this parameter is 'deny hosts'. <P> +This is the opposite of <A HREF="#hosts allow">hosts allow</A> - hosts listed +here are NOT permitted access to services unless the specific services have +their own lists to override this one. Where the lists conflict, the 'allow' +list takes precedence. <P> +<B>Default:</B> none (i.e., no hosts specifically excluded) <P> +<B>Example:</B>hosts deny = 150.203.4. badhost.mynet.edu.au <P> + +<H3><A NAME="hosts equiv">hosts equiv (G)</A></H3> +If this global parameter is a non-null string, it specifies the name of a +file to read for the names of hosts and users who will be allowed access +without specifying a password. <P> +This is not be confused with <A HREF="#hosts allow">hosts allow</A> which is +about hosts access to services and is more useful for guest services. +<B>hosts equiv</B> may be useful for NT clients which will not supply +passwords to samba. <P> +NOTE: The use of hosts.equiv can be a major security hole. This is because you +are trusting the PC to supply the correct username. It is very easy to get a +PC to supply a false username. I recommend that the hosts.equiv option be +only used if you really know what you are doing, or perhaps on a home network +where you trust your wife and kids :-) <P> +<B>Default</B> No host equivalences <P> +<B>Example</B> hosts equiv = /etc/hosts.equiv <P> + +<H3><A NAME="include">include (G)</A></H3> +This allows you to include one config file +inside another. The file is included literally, as though typed in place. <P> +It takes the standard substitutions, except %u, %P and %S <P> + +<H3><A NAME="interfaces">interfaces (G)</A></H3> +This option allows you to setup multiple network interfaces, so that +Samba can properly handle browsing on all interfaces. <P> +The option takes a list of ip/netmask pairs. The netmask may either be a +bitmask, or a bitlength. <P> +For example, the following line: <P> + interfaces = 192.168.2.10/24 192.168.3.10/24 <P> +would configure two network interfaces with IP addresses 192.168.2.10 and +192.168.3.10. The netmasks of both interfaces would be set to 255.255.255.0.<P> +You could produce an equivalent result by using: <P> + interfaces = 192.168.2.10/255.255.255.0 192.168.3.10/255.255.255.0<P> +if you prefer that format. <P> +If this option is not set then Samba will attempt to find a primary interface, +but won't attempt to configure more than one interface. <P> + +<H3><A NAME="invalid users">invalid users (S)</A></H3> +This is a list of users that should not be allowed to login to this service. +This is really a "paranoid" check to absolutely ensure an improper setting +does not breach your security. <P> +A name starting with @ is interpreted as a UNIX group. <P> +The current servicename is substituted for %S. This is useful in the [homes] +section. <P> +See also <A HREF="#valid users">valid users</A> <P> +<B>Default</B> No invalid users <P> +<B>Example</B> invalid users = root fred admin @wheel <P> + +<H3><A NAME="keepalive">keepalive (G)</A></H3> The value of the parameter (an integer) represents the number of seconds -between 'keepalive' packets. If this parameter is zero, no keepalive packets -will be sent. Keepalive packets, if sent, allow the server to tell whether a -client is still present and responding.<p> - -Keepalives should, in general, not be needed if the socket being used -has the SO_KEEPALIVE attribute set on it (see "socket -options"). Basically you should only use this option if you strike -difficulties.<p> - -.B Default: - keep alive = 0<p> - -.B Example: - keep alive = 60<p> - -<a name="lm announce"> -<H3>lm announce (G)</H3><p> - -This parameter determines if Samba will produce Lanman announce -broadcasts that are needed by OS/2 clients in order for them to -see the Samba server in their browse list. This parameter can -have three values, true, false, or auto. The default is auto. -If set to False Samba will never produce these broadcasts. If -set to true Samba will produce Lanman announce broadcasts at -a frequency set by the parameter 'lm interval'. If set to auto -Samba will not send Lanman announce broadcasts by default but -will listen for them. If it hears such a broadcast on the wire -it will then start sending them at a frequency set by the parameter -'lm interval'.<p> - -See also "lm interval".<p> - -.B Default: - lm announce = auto<p> - -.B Example: - lm announce = true<p> - -<a name="lm interval"> -<H3>lm interval (G)</H3><p> - -If Samba is set to produce Lanman announce broadcasts needed -by OS/2 clients (see the "lm announce" parameter) this parameter -defines the frequency in seconds with which they will be made. -If this is set to zero then no Lanman announcements will be -made despite the setting of the "lm announce" parameter.<p> - -See also "lm announce".<p> - -.B Default: - lm interval = 60<p> - -.B Example: - lm interval = 120<p> - -<a name="load printers"> -<H3>load printers (G)</H3> -A boolean variable that controls whether all printers in the printcap -will be loaded for browsing by default. <p> - -.B Default: - load printers = yes<p> - -.B Example: - load printers = no<p> - -<a name="local master"> -<H3>local master (G)</H3> -This option allows the nmbd to become a local master browser on a -subnet. If set to False then nmbd will not attempt to become a local -master browser on a subnet and will also lose in all browsing elections. -By default this value is set to true. Setting this value to true doesn't -mean that Samba will become the local master browser on a subnet, just -that the nmbd will participate in elections for local master browser.<p> - -.B Default: - local master = yes<p> - -<a name="lock directory"> -<H3>lock directory (G)</H3> -This option specifies the directory where lock files will be placed. -The lock files are used to implement the "max connections" option.<p> - -.B Default: - lock directory = /tmp/samba<p> - -.B Example: - lock directory = /usr/local/samba/var/locks<p> - -<a name="locking"> -<H3>locking (S)</H3> +between 'keepalive' packets. If this parameter is zero, no keepalive packets +will be sent. Keepalive packets, if sent, allow the server to tell whether a +client is still present and responding. <P> +<B>Default:</B> keep alive = 300 <P> +<B>Example:</B> keep alive = 60 <P> + +<H3><A NAME="lm announce">lm announce (G)</A></H3> +This parameter determines if Samba will produce Lanman announce broadcasts +that are needed by OS/2 clients in order for them to see the Samba server in +their browse list. This parameter can have three values, True, False, or Auto. +The default is Auto. If set to False Samba will never produce these broadcasts. +If set to True Samba will produce Lanman announce broadcasts at a frequency +set by the parameter <A HREF="#lm interval">lm interval</A>. If set to Auto +Samba will not send Lanman announce broadcasts by default but will listen for +them. If it hears such a broadcast on the wire it will then start sending +them at a frequency set by the 'lm interval' parameter<P> +See also <A HREF="#lm interval">lm interval</A>. <P> +<B>Default:</B> lm announce = Auto <P> +<B>Example:</B> lm announce = True <P> + +<H3><A NAME="lm interval">lm interval (G)</A></H3> +If Samba is set to produce Lanman announce broadcasts needed by OS/2 clients +(see the <A HREF="#lm announce">lm announce</A> parameter) this +parameter defines the frequency in seconds with which they will be made. +If this is set to zero then no Lanman announcements will be made despite +the setting of the <A HREF="#lm announce">lm announce</A> parameter. <P> +See also <A HREF="#lm announce">lm announce</A>. <P> +<B>Default:</B> lm interval = 60 <P> +<B>Example:</B> lm interval = 120 <P> + +<H3><A NAME="load printers">load printers (G)</A></H3> +A boolean variable that controls whether all printers in the printcap +will be loaded for browsing by default. <P> +<B>Default:</B> load printers = Yes <P> +<B>Example:</B> load printers = No <P> + +<H3><A NAME="local master">local master (G)</A></H3> +This option allows nmbd to become a local master browser on a subnet. If set +to No then nmbd will not attempt to become a local master browser on a subnet +and will also lose in all browsing elections. By default this value is set +to Yes. Setting this value to Yes doesn't mean that Samba will become the local +master browser on a subnet, just that the nmbd will participate in elections +for local master browser. <P> +<B>Default:</B> local master = yes <P> + +<H3><A NAME="lock dir">lock dir (G)</A></H3> +This option specifies the directory where lock files will be placed. +The lock files are used to implement the +<A HREF="#max connections">max connections</A> option. <P> +<B>Default:</B> lock dir = /tmp/samba <P> +<B>Example:</B> lock dir = /usr/local/samba/var/locks <P> + +<H3><A NAME="locking">locking (S)</A></H3> This controls whether or not locking will be performed by the server in -response to lock requests from the client.<p> - -If "locking = no", all lock and unlock requests will appear to succeed and -all lock queries will indicate that the queried lock is clear.<p> - -If "locking = yes", real locking will be performed by the server.<p> - -This option may be particularly useful for read-only filesystems which -do not need locking (such as cdrom drives).<p> - -Be careful about disabling locking either globally or in a specific -service, as lack of locking may result in data corruption.<p> - -.B Default: - locking = yes<p> - -.B Example: - locking = no<p> - -<a name="log file"> -<H3>log file (G)</H3><p> - -This options allows you to override the name of the Samba log file -(also known as the debug file).<p> - -This option takes the standard substitutions, allowing you to have -separate log files for each user or machine.<p> - -.B Example: - log file = /usr/local/samba/var/log.%m<p> - -<a name="log level"> -<H3>log level (G)</H3> -see "debug level"<p> - -<a name="logon drive"> -<H3>logon drive (G)</H3><p> - -This parameter specifies the local path to which the home directory -will be connected (see "logon home") and is only used by NT Workstations.<p> - -.B Example: - logon drive = h:<p> - -<a name="logon home"> -<H3>logon home (G)</H3><p> - -This parameter specifies the home directory location when a Win95 or -NT Workstation logs into a Samba PDC. It allows you to do "NET USE -H: /HOME" from a command prompt, for example.<p> - -.B -This option takes the standard substitutions, allowing you to have -separate logon scripts for each user or machine.<p> - -.B Example: - logon home = "\\\\remote_smb_server\\%U"<p> - -.B Default: - logon home = "\\\\%N\\%U"<p> - -<a name="logon path"> -<H3>logon path (G)</H3><p> - -This parameter specifies the home directory where roaming profiles -(USER.DAT / USER.MAN files for Windows 95) are stored.<p> - -This option takes the standard substitutions, allowing you to have -separate logon scripts for each user or machine. It also specifies -the directory from which the "desktop", "start menu", "nethood" and -"programs" folders, and their contents, are loaded and displayed -on your Windows 95 client.<p> - -The share and the path must be readable by the user for the preferences -and directories to be loaded onto the Windows 95 client. The share -must be writeable when the logs in for the first time, in order that -the Windows 95 client can create the user.dat and other directories.<p> - -Thereafter, the directories and any of contents can, if required, -be made read-only. It is not adviseable that the USER.DAT file be made -read-only - rename it to USER.MAN to achieve the desired effect -(a MANdatory profile).<p> - -Windows clients can sometimes maintain a connection to the [homes] -share, even though there is no user logged in. Therefore, it is -vital that the logon path does not include a reference to the -homes share (i.e \\\\%N\\HOMES\profile_path will cause problems).<p> - -.B -This option takes the standard substitutions, allowing you to have -separate logon scripts for each user or machine.<p> - -.B Default: - logon path = \\\\%N\\%U\\profile<p> - -.B Example: - logon path = \\\\PROFILESERVER\\HOME_DIR\\%U\\PROFILE<p> - -<a name="logon script"> -<H3>logon script (G)</H3><p> - -This parameter specifies the batch file (.bat) or NT command file (.cmd) -to be downloaded and run on a machine when a user successfully logs in. -The file must contain the DOS style cr/lf line endings. Using a DOS-style -editor to create the file is recommended.<p> - -The script must be a relative path to the [netlogon] service. If the -[netlogon] service specifies a path of /usr/local/samba/netlogon, and -logon script = STARTUP.BAT, then file that will be downloaded is:<p> - -.B /usr/local/samba/netlogon/STARTUP.BAT<p> - -The contents of the batch file is entirely your choice. A suggested -command would be to add NET TIME \\\\SERVER /SET /YES, to force every -machine to synchronise clocks with the same time server. Another use -would be to add NET USE U: \\\\SERVER\\UTILS for commonly used utilities, -or NET USE Q: \\\\SERVER\\ISO9001_QA.<p> - -Note that it is particularly important not to allow write access to -the [netlogon] share, or to grant users write permission on the -batch files in a secure environment, as this would allow the batch -files to be arbitrarily modified.<p> - -.B -This option takes the standard substitutions, allowing you to have -separate logon scripts for each user or machine.<p> - -.B Example: - logon script = scripts/%U.bat<p> - -<a name="lppause command"> -<H3>lppause command (S)</H3> -This parameter specifies the command to be executed on the server host in -order to stop printing or spooling a specific print job.<p> - -This command should be a program or script which takes a printer name and -job number to pause the print job. Currently I don't know of any print -spooler system that can do this with a simple option, except for the PPR -system from Trinity College (ppr\-dist.trincoll.edu/pub/ppr). One way -of implementing this is by using job priorities, where jobs having a too -low priority won't be sent to the printer. See also the -.B lppause -command.<p> - -If a %p is given then the printername is put in its place. A %j is -replaced with the job number (an integer). -On HPUX (see printing=hpux), if the -p%p option is added to the lpq -command, the job will show up with the correct status, i.e. if the job -priority is lower than the set fence priority it will have the PAUSED -status, whereas if the priority is equal or higher it will have the -SPOOLED or PRINTING status.<p> - -Note that it is good practice to include the absolute path in the lppause -command as the PATH may not be available to the server.<p> - -.B Default: - Currently no default value is given to this string<p> - -.B Example for HPUX: - lppause command = /usr/bin/lpalt %p-%j -p0<p> - -<a name="lpq cache time"> -<H3>lpq cache time (G)</H3><p> - -This controls how long lpq info will be cached for to prevent the lpq -command being called too often. A separate cache is kept for each -variation of the lpq command used by the system, so if you use -different lpq commands for different users then they won't share cache -information.<p> - -The cache files are stored in /tmp/lpq.xxxx where xxxx is a hash -of the lpq command in use.<p> - -The default is 10 seconds, meaning that the cached results of a -previous identical lpq command will be used if the cached data is less -than 10 seconds old. A large value may be advisable if your lpq -command is very slow.<p> - -A value of 0 will disable cacheing completely.<p> - -.B Default: - lpq cache time = 10<p> - -.B Example: - lpq cache time = 30<p> - -<a name="lpq command"> -<H3>lpq command (S)</H3> -This parameter specifies the command to be executed on the server host in -order to obtain "lpq"-style printer status information. <p> - -This command should be a program or script which takes a printer name -as its only parameter and outputs printer status information. <p> - -Currently six styles of printer status information are supported; BSD, -SYSV, AIX, HPUX, QNX, LPRNG and PLP. This covers most UNIX systems. You -control which type is expected using the "printing =" option.<p> - -Some clients (notably Windows for Workgroups) may not correctly send the -connection number for the printer they are requesting status information -about. To get around this, the server reports on the first printer service -connected to by the client. This only happens if the connection number sent -is invalid.<p> - -If a %p is given then the printername is put in its place. Otherwise -it is placed at the end of the command.<p> - -Note that it is good practice to include the absolute path in the lpq -command as the PATH may not be available to the server.<p> - -.B Default: - depends on the setting of "printing ="<p> - -.B Example: - lpq command = /usr/bin/lpq %p<p> - -<a name="lpresume command"> -<H3>lpresume command (S)</H3> -This parameter specifies the command to be executed on the server host in -order to restart or continue printing or spooling a specific print job.<p> - -This command should be a program or script which takes a printer name and -job number to resume the print job. See also the lppause command.<p> - -If a %p is given then the printername is put in its place. A %j is -replaced with the job number (an integer).<p> - -Note that it is good practice to include the absolute path in the lpresume -command as the PATH may not be available to the server.<p> - -.B Default: - Currently no default value is given to this string<p> - -.B Example for HPUX: - lpresume command = /usr/bin/lpalt %p-%j -p2<p> - -<a name="lprm command"> -<H3>lprm command (S)</H3> -This parameter specifies the command to be executed on the server host in -order to delete a print job.<p> - -This command should be a program or script which takes a printer name -and job number, and deletes the print job.<p> - -Currently seven styles of printer control are supported; BSD, SYSV, AIX -HPUX, QNX, LPRNG and PLP. This covers most UNIX systems. You control -which type is expected using the "printing =" option.<p> - -If a %p is given then the printername is put in its place. A %j is -replaced with the job number (an integer).<p> - -Note that it is good practice to include the absolute path in the lprm -command as the PATH may not be available to the server.<p> - -.B Default: - depends on the setting of "printing ="<p> - -.B Example 1: - lprm command = /usr/bin/lprm -P%p %j<p> - -.B Example 2: - lprm command = /usr/bin/cancel %p-%j<p> - -<a name="magic output"> -<H3>magic output (S)</H3> -This parameter specifies the name of a file which will contain output -created by a magic script (see -.I magic script -below).<p> - -Warning: If two clients use the same magic script in the same directory the -output file content is undefined. -.B Default: - magic output = <magic script name>.out<p> - -.B Example: - magic output = myfile.txt -<a name="magic script"> -<H3>magic script (S)</H3> -This parameter specifies the name of a file which, if opened, will be -executed by the server when the file is closed. This allows a UNIX script -to be sent to the Samba host and executed on behalf of the connected user.<p> - -Scripts executed in this way will be deleted upon completion, permissions -permitting.<p> - -If the script generates output, output will be sent to the file specified by -the -.I magic output -parameter (see above).<p> - -Note that some shells are unable to interpret scripts containing -carriage-return-linefeed instead of linefeed as the end-of-line -marker. Magic scripts must be executable "as is" on the host, which -for some hosts and some shells will require filtering at the DOS end.<p> - -Magic scripts are EXPERIMENTAL and should NOT be relied upon.<p> - -.B Default: - None. Magic scripts disabled.<p> - -.B Example: - magic script = user.csh<p> - -<a name="mangle case"> -<H3>mangle case (S)</H3><p> - -See the section on "NAME MANGLING"<p> - -<a name="mangled map"> -<H3>mangled map (S)</H3> -This is for those who want to directly map UNIX file names which are -not representable on DOS. The mangling of names is not always what is -needed. In particular you may have documents with file extensions -that differ between DOS and UNIX. For example, under UNIX it is common -to use .html for HTML files, whereas under DOS .htm is more commonly -used.<p> - -So to map 'html' to 'htm' you put:<p> - - mangled map = (*.html *.htm)<p> - -One very useful case is to remove the annoying ;1 off the ends of -filenames on some CDROMS (only visible under some UNIXes). To do this -use a map of (*;1 *)<p> - -.B default: - no mangled map<p> - -.B Example: - mangled map = (*;1 *)<p> - -<a name="mangled names"> -<H3>mangled names (S)</H3> -This controls whether non-DOS names under UNIX should be mapped to -DOS-compatible names ("mangled") and made visible, or whether non-DOS names -should simply be ignored.<p> - -See the section on "NAME MANGLING" for details on how to control the -mangling process.<p> - -If mangling is used then the mangling algorithm is as follows: -.RS -- the first (up to) five alphanumeric characters before the rightmost dot of -the filename are preserved, forced to upper case, and appear as the first (up -to) five characters of the mangled name.<p> - -- a tilde ("~") is appended to the first part of the mangled name, followed -by a two-character unique sequence, based on the original root name -(i.e., the original filename minus its final extension). The final -extension is included in the hash calculation only if it contains any upper -case characters or is longer than three characters.<p> - -Note that the character to use may be specified using the "mangling -char" option, if you don't like ~.<p> - -- the first three alphanumeric characters of the final extension are preserved, -forced to upper case and appear as the extension of the mangled name. The -final extension is defined as that part of the original filename after the -rightmost dot. If there are no dots in the filename, the mangled name will -have no extension (except in the case of hidden files - see below).<p> - -- files whose UNIX name begins with a dot will be presented as DOS hidden -files. The mangled name will be created as for other filenames, but with the -leading dot removed and "___" as its extension regardless of actual original -extension (that's three underscores). -.RE<p> - -The two-digit hash value consists of upper case alphanumeric characters.<p> - -This algorithm can cause name collisions only if files in a directory share -the same first five alphanumeric characters. The probability of such a clash -is 1/1300.<p> - -The name mangling (if enabled) allows a file to be copied between UNIX -directories from DOS while retaining the long UNIX filename. UNIX files can +response to lock requests from the client. <P> +If set to No, all lock and unlock requests will appear to succeed and all +lock queries will indicate that the queried lock is clear. <P> +If set to Yes, real locking will be performed by the server. <P> +This option may be particularly useful for read-only filesystems which do not +need locking (such as CDROM drives). <P> +Be careful about disabling locking either globally or in a specific +service, as lack of locking may result in data corruption. <P> +<B>Default:</B> locking = Yes <P> +<B>Example:</B> locking = No <P> + +<H3><A NAME="log file">log file (G)</A></H3> +This options allows you to override the name of the Samba log file (also +known as the debug file). <P> +This option takes the standard substitutions, allowing you to have separate +log files for each user or machine. <P> +<B>Example:</B> log file = /usr/local/samba/var/log.%m <P> + +<H3><A NAME="log level">log level (G)</A></H3> +A synonym for this is debuglevel<P> +The value of the parameter (an integer) allows the logging level (debug level) +to be specified in the <B>smb.conf</B> file. This is to give greater +flexibility in the configuration of the system. <P> +The default will be the logging level specified on the command line. <P> +<B>Example:</B> log level = 3 + +<H3><A NAME="logon drive">logon drive (G)</A></H3> +This parameter specifies the local path to which the home directory will be +connected (see <A HREF="#logon home">logon home</A>) and is only used by NT +Workstations. <P> +<B>Example:</B> logon drive = h: <P> + +<H3><A NAME="logon home">logon home (G)</A></H3> +This parameter specifies the home directory location when a Win95 or NT +Workstation logs into a Samba PDC. It allows you to do "NET USE H: /HOME" +from a command prompt, for example. <P> +This option takes the standard substitutions, allowing you to have separate +logon scripts for each user or machine. <P> +<B>Default:</B> logon home = "\\%N\%U" <P> +<B>Example:</B> logon home = "\\remote_smb_server\%U" <P> + +<H3><A NAME="logon path">logon path (G)</A></H3> +This parameter specifies the home directory where roaming profiles (USER.DAT +/ USER.MAN files for Windows 95) are stored. <P> +This option takes the standard substitutions, allowing you to have separate +logon scripts for each user or machine. It also specifies the directory from +which the "desktop", "start menu", "nethood" and "programs" folders, and their +contents, are loaded and displayed on your Windows 95 client. <P> +The share and the path must be readable by the user for the preferences and +directories to be loaded onto the Windows 95 client. The share must be +writeable when the user logs in for the first time, in order that the +Windows 95 client can create the user.dat and other directories. <P> +Thereafter, the directories and any of contents can, if required, be +made read-only. It is not adviseable that the USER.DAT file be made read-only +- rename it to USER.MAN to achieve the desired effect (a MANdatory profile). <P> +Windows clients can sometimes maintain a connection to the [homes] share, +even though there is no user logged in. Therefore, it is vital that the +logon path does not include a reference to the homes share (i.e +\\%N\HOMESprofile_path will cause problems). <P> +This option takes the standard substitutions, allowing you to have separate +logon scripts for each user or machine. <P> +<B>Default:</B> logon path = \\%N\%U\profile <P> +<B>Example:</B> logon path = \\PROFILESERVER\HOME_DIR\%U\PROFILE <P> + +<H3><A NAME="logon script">logon script (G)</A></H3> +This parameter specifies the batch file (.bat) or NT command file (.cmd) to +be downloaded and run on a machine when a user successfully logs in. The file +must contain the DOS style cr/lf line endings. Using a DOS-style editor to +create the file is recommended. <P> +The script must be a relative path to the [netlogon] service. If the +[netlogon] service specifies a path of /usr/local/samba/netlogon, and logon +script = STARTUP.BAT, then file that will be downloaded is: <P> + <B>/usr/local/samba/netlogon/STARTUP.BAT</B> <P> +The contents of the batch file is entirely your choice. A suggested command +would be to add NET TIME \\SERVER /SET /YES, to force every machine to +synchronise clocks with the same time server. Another use would be to add +NET USE U: \\SERVER\UTILS for commonly used utilities, or +NET USE Q: \\SERVER\ISO9001_QA. <P> +Note that it is particularly important not to allow write access to the +[netlogon] share, or to grant users write permission on the batch files +in a secure environment, as this would allow the batch files to be arbitrarily +modified. <P> +This option takes the standard substitutions, allowing you to have separate +logon scripts for each user or machine. <P> +<B>Example:</B> logon script = scripts/%U.bat <P> + +<H3><A NAME="lppause command">lppause command (S)</A></H3> +This parameter specifies the command to be executed on the server host in +order to stop printing or spooling a specific print job. <P> +This command should be a program or script which takes a printer name and +job number to pause the print job. Currently I don't know of any print spooler +system that can do this with a simple option, except for the PPR system from +Trinity College (ppr-dist.trincoll.edu/pub/ppr). One way of implementing this +is by using job priorities, where jobs having a too low priority won't be +sent to the printer. See also +<A HREF="#lpresume command">lpresume command</A>.<P> +If a %p is given then the printername is put in its place. A %j is replaced +with the job number (an integer). On HPUX (see +<A HREF="#printing">printing</A>=hpux), if the -p%p +option is added to the lpq command, the job will show up with the correct +status, i.e. if the job priority is lower than the set fence priority it +will have the PAUSED status, whereas if the priority is equal or higher +it will have the SPOOLED or PRINTING status. <P> +Note that it is good practice to include the absolute path in the lppause +command as the PATH may not be available to the server. <P> +<B>Default:</B> Currently no default value is given to this string <P> +<B>Example for HPUX:</B> lppause command = /usr/bin/lpalt %p-%j -p0 <P> + +<H3><A NAME="lpq cache time">lpq cache time (G)</A></H3> +This controls how long lpq info will be cached for to prevent the lpq command +being called too often. A separate cache is kept for each variation of the +lpq command used by the system, so if you use different lpq commands for +different users then they won't share cache information. <P> +The cache files are stored in /tmp/lpq.xxxx where xxxx is a hash of the lpq +command in use. <P> +The default is 10 seconds, meaning that the cached results of a previous +identical lpq command will be used if the cached data is less than 10 seconds +old. A large value may be advisable if your lpq command is very slow. <P> +A value of 0 will disable cacheing completely. <P> +<B>Default:</B> lpq cache time = 10 <P> +<B>Example:</B> lpq cache time = 30 <P> + +<H3><A NAME="lpq command">lpq command (S)</A></H3> +This parameter specifies the command to be executed on the server host +in order to obtain "lpq"-style printer status information. <P> +This command should be a program or script which takes a printer name as its +only parameter and outputs printer status information. <P> +Currently six styles of printer status information are supported; BSD, SYSV, +AIX, HPUX, QNX, LPRNG and PLP. This covers most UNIX systems. You control +which type is expected using the <A HREF="#printing">printing</A> option. <P> +Some clients (notably Windows for Workgroups) may not correctly send the +connection number for the printer they are requesting status information +about. To get around this, the server reports on the first printer service +connected to by the client. This only happens if the connection number sent +is invalid. <P> +If a %p is given then the printername is put in its place. Otherwise it is +placed at the end of the command. <P> +Note that it is good practice to include the absolute path in the lpq +command as the PATH may not be available to the server. <P> +<B>Default:</B> depends on the setting of <A HREF="#printing">printing</A><P> +<B>Example:</B> lpq command = /usr/bin/lpq %p <P> + +<H3><A NAME="lpresume command">lpresume command (S)</A></H3> +This parameter specifies the command to be executed on the server host in +order to restart or continue printing or spooling a specific print job. <P> +This command should be a program or script which takes a printer name and +job number to resume the print job. See also the +<A HREF="#lppause command">lppause command</A>. <P> +If a %p is given then the printername is put in its place. +A %j is replaced with the job number (an integer). <P> +Note that it is good practice to include the absolute path in the lpresume +command as the PATH may not be available to the server. <P> +<B>Default:</B> Currently no default value is given to this string <P> +<B>Example for HPUX:</B> lpresume command = /usr/bin/lpalt %p-%j -p2 <P> + +<H3><A NAME="lprm command">lprm command (S)</A></H3> +This parameter specifies the command to be executed on the server host in +order to delete a print job. <P> +This command should be a program or script which takes a printer name +and job number, and deletes the print job. <P> +Currently seven styles of printer control are supported; BSD, SYSV, AIX HPUX, +QNX, LPRNG and PLP. This covers most UNIX systems. You control which type is +expected using the <A HREF="#printing">printing</A> option. <P> +If a %p is given then the printername is put in its place. A +%j is replaced with the job number (an integer). <P> +Note that it is good practice to include the absolute path in the lprm +command as the PATH may not be available to the server. <P> +<B>Default:</B> depends on the setting of <A HREF="#printing">printing</A><P> +<B>Example 1:</B>lprm command = /usr/bin/lprm -P%p %j <P> +<B>Example 2:</B>lprm command = /usr/bin/cancel %p-%j <P> + +<H3><A NAME="magic output">magic output (S)</A></H3> +This parameter specifies the name of a file which will contain output +created by a magic script (see <A HREF="#magic script">magic script</A> +below). <P> +Warning: If two clients use the same magic script in the same directory the +output file content is undefined. <P> +<B>Default:</B> magic output = <magic script name>.out <P> +<B>Example:</B> magic output = myfile.txt <P> + +<H3><A NAME="magic script">magic script (S)</A></H3> +This parameter specifies the name of a file which, if opened, will be +executed by the server when the file is closed. This allows a UNIX script to +be sent to the Samba host and executed on behalf of the connected user. <P> +Scripts executed in this way will be deleted upon completion, permissions +permitting. <P> +If the script generates output, output will be sent to the file specified by +the <A HREF="#magic output">magic output</A> parameter. <P> +Note that some shells are unable to interpret scripts containing +carriage-return-linefeed instead of linefeed as the end-of-line marker. Magic +scripts must be executable "as is" on the host, which for some hosts and +some shells will require filtering at the DOS end. <P> +Magic scripts are EXPERIMENTAL and should NOT be relied upon. <P> +<B>Default:</B> None. Magic scripts disabled. <P> +<B>Example:</B> magic script = user.csh <P> + +<H3><A NAME="mangle case">mangle case (S)</A></H3> +Controls if names that have characters that aren't of the "default" case are +mangled. <P> +See the section on <A HREF="#NAME MANGLING">NAME MANGLING</A> <P> + +<H3><A NAME="mangled map">mangled map (S)</A></H3> +This is for those who want to directly map UNIX file names which are not +representable on DOS. The mangling of names is not always what is needed. In +particular you may have documents with file extensions that differ between +DOS and UNIX. For example, under UNIX it is common to use .html for HTML +files, whereas under DOS .htm is more commonly used. <P> +So to map 'html' to 'htm' you put: <P> +mangled map = (*.html *.htm) <P> +One very useful case is to remove the annoying ;1 off the ends of filenames +on some CDROMS (only visible under some UNIXes). To do this use a map of +(*;1 *) <P> +<B>default:</B> no mangled map <P> +<B>Example:</B> mangled map = (*;1 *) <P> + +<H3><A NAME="mangled names">mangled names (S)</A></H3> +This controls whether non-DOS names under UNIX should be mapped +to DOS-compatible names ("mangled") and made visible, or whether non-DOS +names should simply be ignored. <P> +See the section on <A HREF="#NAME MANGLING">NAME MANGLING</A> for +details on how to control the mangling process. <P> +If mangling is used then the mangling algorithm is as follows: +<blockquote>- the first (up to) five alphanumeric characters before the +rightmost dot of the filename are preserved, forced to upper case, and appear +as the first (up to) five characters of the mangled name. <P> +- a tilde ("~") is appended to the first part of the mangled name, followed +by a two-character unique sequence, based on the original root name (i.e., +the original filename minus its final extension). The final +extension is included in the hash calculation only if it contains any +upper case characters or is longer than three characters. <P> +Note that the character to use may be specified using the +<A HREF="#mangling char">mangling char</A> option, if you don't like ~. <P> +- the first three alphanumeric characters of the final +extension are preserved, forced to upper case and appear as the extension +of the mangled name. The final extension is defined as that part of the +original filename after the rightmost dot. If there are no dots in the +filename, the mangled name will have no extension (except in the case +of hidden files - see below). <P> +- files whose UNIX name begins with a dot will be presented as DOS hidden +files. The mangled name will be created as for other filenames, but with the +leading dot removed and "___" as its extension regardless of actual original +extension (that's three underscores). +</blockquote> +The two-digit hash value consists of upper case alphanumeric characters. <P> +This algorithm can cause name collisions only if files in a directory +share the same first five alphanumeric characters. The probability of such +a clash is 1/1300. <P> +The name mangling (if enabled) allows a file to be copied between UNIX +directories from DOS while retaining the long UNIX filename. UNIX files can be renamed to a new extension from DOS and will retain the same basename. -Mangled names do not change between sessions.<p> - -.B Default: - mangled names = yes<p> - -.B Example: - mangled names = no -<a name="mangling char"> -<H3>mangling char (S)</H3> -This controls what character is used as the "magic" character in name -mangling. The default is a ~ but this may interfere with some -software. Use this option to set it to whatever you prefer.<p> - -.B Default: - mangling char = ~<p> - -.B Example: - mangling char = ^<p> - -<a name="mangled stack"> -<H3>mangled stack (G)</H3> -This parameter controls the number of mangled names that should be cached in -the Samba server.<p> - -This stack is a list of recently mangled base names (extensions are only -maintained if they are longer than 3 characters or contains upper case -characters).<p> - -The larger this value, the more likely it is that mangled names can be -successfully converted to correct long UNIX names. However, large stack -sizes will slow most directory access. Smaller stacks save memory in the -server (each stack element costs 256 bytes).<p> - -It is not possible to absolutely guarantee correct long file names, so -be prepared for some surprises!<p> - -.B Default: - mangled stack = 50<p> - -.B Example: - mangled stack = 100<p> - -<a name="map archive"> -<H3>map archive (S)</H3> -This controls whether the DOS archive attribute should be mapped to the -UNIX owner execute bit. The DOS archive bit is set when a file has been modified -since its last backup. One motivation for this option it to keep Samba/your -PC from making any file it touches from becoming executable under UNIX. -This can be quite annoying for shared source code, documents, etc...<p> - -Note that this requires the 'create mask' to be set such that owner -execute bit is not masked out (ie. it must include 100). See the -parameter "create mask" for details.<p> - -.B Default: - map archive = yes<p> - -.B Example: - map archive = no<p> - -<a name="map hidden"> -<H3>map hidden (S)</H3> -This controls whether DOS style hidden files should be mapped to the -UNIX world execute bit.<p> - -Note that this requires the 'create mask' to be set such that the world -execute bit is not masked out (ie. it must include 001). -See the parameter "create mask" for details.<p> - -.B Default: - map hidden = no<p> - -.B Example: - map hidden = yes -<a name="map system"> -<H3>map system (S)</H3> -This controls whether DOS style system files should be mapped to the -UNIX group execute bit.<p> - -Note that this requires the 'create mask' to be set such that the group +Mangled names do not change between sessions. <P> +<B>Default:</B> mangled names = Yes <P> +<B>Example:</B> mangled names = No <P> + +<H3><A NAME="mangling char">mangling char (S)</A></H3> +This controls what character is used as the "magic" character +in name mangling. The default is a ~ but this may interfere with some software. +Use this option to set it to whatever you prefer. <P> +<B>Default:</B> mangling char = ~ <P> +<B>Example:</B> mangling char = ^ <P> + +<H3><A NAME="mangled stack">mangled stack (G)</A></H3> +This parameter controls the number of mangled names that should be cached in +the Samba server. <P> +This stack is a list of recently mangled base names (extensions are only +maintained if they are longer than 3 characters or contains upper case +characters). <P> +The larger this value, the more likely it is that mangled +names can be successfully converted to correct long UNIX names. However, +large stack sizes will slow most directory access. Smaller stacks save +memory in the server (each stack element costs 256 bytes). <P> +It is not possible to absolutely guarantee correct long file names, so be +prepared for some surprises! <P> +<B>Default:</B> mangled stack = 50 <P> +<B>Example:</B> mangled stack = 100 <P> + +<H3><A NAME="map archive">map archive (S)</A></H3> +This controls whether the DOS archive attribute should +be mapped to the UNIX owner execute bit. The DOS archive bit is set when +a file has been modified since its last backup. One motivation for this +option it to keep Samba/your PC from making any file it touches from becoming +executable under UNIX. This can be quite annoying for shared source code, +documents, etc... <P> +Note that this requires the 'create mask' to be set such +that owner execute bit is not masked out (ie. it must include 100). See +the parameter <A HREF="#create mask">create mask</A> for details. <P> +<B>Default:</B> map archive = Yes <P> +<B>Example:</B> map archive = No <P> + +<H3><A NAME="map hidden">map hidden (S)</A></H3> +This controls whether DOS style hidden files should be mapped to the UNIX +world execute bit. <P> +Note that this requires the 'create mask' to be set such that the world +execute bit is not masked out (ie. it must include 001). See the parameter +<A HREF="#create mask">create mask</A> for details. <P> +<B>Default:</B> map hidden = No <P> +<B>Example:</B> map hidden = Yes <P> + +<H3><A NAME="map system">map system (S)</A></H3> +This controls whether DOS style system files should be mapped to the UNIX +group execute bit. <P> +Note that this requires the 'create mask' to be set such that the group execute bit is not masked out (ie. it must include 010). See the parameter -"create mask" for details.<p> - -.B Default: - map system = no<p> - -.B Example: - map system = yes -<a name="max connections"> -<H3>max connections (S)</H3> -This option allows the number of simultaneous connections to a -service to be limited. If "max connections" is greater than 0 then -connections will be refused if this number of connections to the -service are already open. A value of zero mean an unlimited number of -connections may be made.<p> - -Record lock files are used to implement this feature. The lock files -will be stored in the directory specified by the "lock directory" option.<p> - -.B Default: - max connections = 0<p> - -.B Example: - max connections = 10<p> - -<a name="max disk size"> -<H3>max disk size (G)</H3> -This option allows you to put an upper limit on the apparent size of -disks. If you set this option to 100 then all shares will appear to be -not larger than 100 MB in size.<p> - -Note that this option does not limit the amount of data you can put on -the disk. In the above case you could still store much more than 100 -MB on the disk, but if a client ever asks for the amount of free disk -space or the total disk size then the result will be bounded by the -amount specified in "max disk size".<p> - -This option is primarily useful to work around bugs in some pieces of -software that can't handle very large disks, particularly disks over -1GB in size.<p> - -A "max disk size" of 0 means no limit.<p> - -.B Default: - max disk size = 0<p> - -.B Example: - max disk size = 1000<p> - -<a name="max log size"> -<H3>max log size (G)</H3><p> - -This option (an integer in kilobytes) specifies the max size the log -file should grow to. Samba periodically checks the size and if it is -exceeded it will rename the file, adding a .old extension.<p> - -A size of 0 means no limit.<p> - -.B Default: - max log size = 5000<p> - -.B Example: - max log size = 1000<p> - -<a name="max mux"> -<H3>max mux (G)</H3><p> - +<A HREF="#create mask">create mask</A> for details. <P> +<B>Default:</B> map system = No <P> +<B>Example:</B> map system = Yes <P> + +<H3><A NAME="max connections">max connections (S)</A></H3> +This option allows the number of simultaneous connections to a service to be +limited. If "max connections" is greater than 0 then connections will be +refused if this number of connections to the service are already open. A value +of zero mean an unlimited number of connections may be made. <P> +Record lock files are used to implement this feature. The lock files will be +stored in the directory specified by the +<A HREF="#lock dir">lock dir</A> option. <P> +<B>Default:</B> max connections = 0 <P> +<B>Example:</B> max connections = 10 <P> + +<H3><A NAME="max disk size">max disk size (G)</A></H3> +This option allows you to put an upper limit on the apparent size of disks. +If you set this option to 100 then all shares will appear to be not larger +than 100 MB in size. <P> +Note that this option does not limit the amount of data you can put on the +disk. In the above case you could still store much more than 100 MB on the +disk, but if a client ever asks for the amount of free disk space or the +total disk size then the result will be bounded by the amount specified in +"max disk size". <P> +This option is primarily useful to work around bugs in some pieces of +software that can't handle very large disks, particularly disks over 1GB in +size. <P> +A "max disk size" of 0 means no limit. <P> +<B>Default:</B> max disk size = 0 <P> +<B>Example:</B> max disk size = 1000 <P> + +<H3><A NAME="max log size">max log size (G)</A></H3> +This option (an integer in kilobytes) specifies the max size +the log file should grow to. Samba periodically checks the size and if +it is exceeded it will rename the file, adding a .old extension. <P> +A size of 0 means no limit. <P> +<B>Default:</B> max log size = 5000 <P> +<B>Example:</B> max log size = 1000 <P> + +<H3><A NAME="max mux">max mux (G)</A></H3> This option controls the maximum number of outstanding simultaneous SMB operations that samba tells the client it will allow. You should never need -to set this parameter.<p> - -.B Default: - max mux = 50<p> - -<a name="max packet"> -<H3>max packet (G)</H3><p> - -A synonym for this parameter is 'packet size'.<p> - -<a name="max ttl"> -<H3>max ttl (G)</H3><p> - -This option tells nmbd what the default 'time to live' of NetBIOS -names should be (in seconds) when nmbd is requesting a name using -either a broadcast or from a WINS server. You should never need to -change this parameter.<p> - -.B Default: - max ttl = 14400<p> - -<a name="max wins ttl"> -<H3>max wins ttl (G)</H3><p> - -This option tells nmbd when acting as a WINS server (wins support = true) -what the maximum 'time to live' of NetBIOS names that nmbd will grant will -be (in seconds). You should never need to change this parameter. -The default is 3 days (259200 seconds).<p> - -.B Default: - max wins ttl = 259200<p> - -<a name="max xmit"> -<H3>max xmit (G)</H3><p> - -This option controls the maximum packet size that will be negotiated -by Samba. The default is 65535, which is the maximum. In some cases -you may find you get better performance with a smaller value. A value -below 2048 is likely to cause problems.<p> - -.B Default: - max xmit = 65535<p> - -.B Example: - max xmit = 8192<p> - -<a name="message command"> -<H3>message command (G)</H3><p> - -This specifies what command to run when the server receives a WinPopup -style message.<p> - -This would normally be a command that would deliver the message -somehow. How this is to be done is up to your imagination.<p> - -What I use is:<p> - - message command = csh -c 'xedit %s;rm %s' &<p> - -This delivers the message using xedit, then removes it -afterwards. NOTE THAT IT IS VERY IMPORTANT THAT THIS COMMAND RETURN -IMMEDIATELY. That's why I have the & on the end. If it doesn't return -immediately then your PCs may freeze when sending messages (they -should recover after 30secs, hopefully).<p> - -All messages are delivered as the global guest user. The command takes -the standard substitutions, although %u won't work (%U may be better -in this case).<p> - -Apart from the standard substitutions, some additional ones apply. In -particular:<p> - -%s = the filename containing the message<p> - -%t = the destination that the message was sent to (probably the server -name)<p> - -%f = who the message is from<p> - -You could make this command send mail, or whatever else takes your -fancy. Please let me know of any really interesting ideas you have.<p> - -Here's a way of sending the messages as mail to root:<p> - -message command = /bin/mail -s 'message from %f on %m' root < %s; rm %s<p> - -If you don't have a message command then the message won't be -delivered and Samba will tell the sender there was an -error. Unfortunately WfWg totally ignores the error code and carries -on regardless, saying that the message was delivered.<p> - -If you want to silently delete it then try "message command = rm %s".<p> - -For the really adventurous, try something like this:<p> - -message command = csh -c 'csh < %s |& /usr/local/samba/bin/smbclient \e - -M %m; rm %s' &<p> - -this would execute the command as a script on the server, then give -them the result in a WinPopup message. Note that this could cause a -loop if you send a message from the server using smbclient! You better -wrap the above in a script that checks for this :-)<p> - -.B Default: - no message command<p> - -.B Example: - message command = csh -c 'xedit %s;rm %s' &<p> - -<a name="min print space"> -<H3>min print space (S)</H3><p> - -This sets the minimum amount of free disk space that must be available -before a user will be able to spool a print job. It is specified in -kilobytes. The default is 0, which means no limit.<p> - -.B Default: - min print space = 0<p> - -.B Example: - min print space = 2000<p> - -<a name="min wins ttl"> -<H3>min wins ttl (G)</H3><p> - -This option tells nmbd when acting as a WINS server (wins support = true) -what the minimum 'time to live' of NetBIOS names that nmbd will grant will -be (in seconds). You should never need to change this parameter. -The default is 6 hours (21600 seconds).<p> - -.B Default: - min wins ttl = 21600<p> - - -<a name="netbios aliases"> -<H3>netbios aliases (G)</H3><p> - -This is a list of names that nmbd will advertise as additional -names by which the Samba server is known. This allows one machine -to appear in browse lists under multiple names. If a machine is -acting as a browse server or logon server none of these names -will be advertised as either browse server or logon servers, only -the primary name of the machine will be advertised with these -capabilities.<p> - -See also 'netbios name'.<p> - -.B Example: - netbios aliases = TEST TEST1 TEST2<p> - -<a name="netbios name"> -<H3>netbios name (G)</H3><p> - -This sets the NetBIOS name by which a Samba server is known. By -default it is the same as the first component of the host's DNS name. -If a machine is a browse server or logon server this name (or the -first component of the hosts DNS name) will be the name that these -services are advertised under.<p> - -See also 'netbios aliases'.<p> - -.B Example: - netbios name = MYNAME<p> - -<a name="nis homedir"> -<H3>nis homedir (G)</H3> -Get the home share server from a NIS (or YP) map. For unix systems that -use an automounter, the user's home directory will often be mounted on -a workstation on demand from a remote server. When the Samba logon server -is not the actual home directory server, two network hops are required -to access the home directory and this can be very slow especially with -writing via Samba to an NFS mounted directory. This option allows samba -to return the home share as being on a different server to the logon -server and as long as a samba daemon is running on the home directory -server, it will be mounted on the Samba client directly from the directory -server. When Samba is returning the home share to the client, it will -consult the NIS (or YP) map specified in "homedir map" and return the -server listed there.<p> - -.B Default: - nis homedir = false<p> - -.B Example: - nis homedir = true<p> - -<a name="networkstation user login"> -<H3>networkstation user login (G)</H3> -This global parameter (new for 1.9.18p3) affects server level security. -With this set (recommended) samba will do a full NetWkstaUserLogon to -confirm that the client really should have login rights. This can cause -problems with machines in trust relationships in which case you can -disable it here, but be warned, we have heard that some NT machines -will then allow anyone in with any password! Make sure you test it.<p> - -.B Default: - networkstation user login = yes<p> - -.B Example: - networkstation user login = no<p> - -<a name="null passwords"> -<H3>null passwords (G)</H3> -Allow or disallow access to accounts that have null passwords. <p> - -.B Default: - null passwords = no<p> - -.B Example: - null passwords = yes<p> - -<a name="only guest"> -<H3>only guest (S)</H3> -A synonym for this command is 'guest only'.<p> - -<a name="only user"> -<H3>only user (S)</H3> -This is a boolean option that controls whether connections with -usernames not in the user= list will be allowed. By default this -option is disabled so a client can supply a username to be used by -the server.<p> - -Note that this also means Samba won't try to deduce usernames from the -service name. This can be annoying for the [homes] section. To get -around this you could use "user = %S" which means your "user" list -will be just the service name, which for home directories is the name -of the user.<p> - -.B Default: - only user = False<p> - -.B Example: - only user = True<p> - -<a name="oplocks"> -<H3>oplocks (S)</H3> -This boolean option tells smbd whether to issue oplocks (opportunistic -locks) to file open requests on this share. The oplock code was introduced in -Samba 1.9.18 and can dramatically (approx 30% or more) improve the speed -of access to files on Samba servers. It allows the clients to agressively -cache files locally and you may want to disable this option for unreliable -network environments (it is turned on by default in Windows NT Servers). -For more information see the file Speed.txt in the Samba docs/ directory.<p> - -Oplocks may be selectively turned off on certain files on a per share basis. -See the 'veto oplock files' parameter.<p> - -.B Default: - oplocks = True<p> - -.B Example: - oplocks = False<p> - - -<a name="os level"> -<H3>os level (G)</H3> -This integer value controls what level Samba advertises itself as for -browse elections. See BROWSING.txt for details.<p> - -<a name="packet size"> -<H3>packet size (G)</H3> -The maximum transmit packet size during a raw read. This option is no -longer implemented as of version 1.7.00, and is kept only so old -configuration files do not become invalid.<p> - -<a name="passwd chat"> -<H3>passwd chat (G)</H3> -This string controls the "chat" conversation that takes places -between smbd and the local password changing program to change the -users password. The string describes a sequence of response-receive -pairs that smbd uses to determine what to send to the passwd program -and what to expect back. If the expected output is not received then -the password is not changed.<p> - -This chat sequence is often quite site specific, depending on what -local methods are used for password control (such as NIS+ etc).<p> - -The string can contain the macros %o and %n which are substituted for -the old and new passwords respectively. It can also contain the -standard macros \en \er \et and \es to give line-feed, carriage-return, -tab and space.<p> - -The string can also contain a * which matches any sequence of -characters.<p> - -Double quotes can be used to collect strings with spaces in them into -a single string.<p> - -If the send string in any part of the chat sequence is a fullstop "." -then no string is sent. Similarly, is the expect string is a fullstop -then no string is expected.<p> - -.B Example: - passwd chat = "*Enter OLD password*" %o\en "*Enter NEW password*" %n\en \e - "*Reenter NEW password*" %n\en "*Password changed*"<p> - - -.B Default: - passwd chat = *old*password* %o\en *new*password* %n\en *new*password* %n\en *changed*<p> - -<a name="passwd program"> -<H3>passwd program (G)</H3> -The name of a program that can be used to set user passwords.<p> - -This is only necessary if you have enabled remote password changing at -compile time. Any occurrences of %u will be replaced with the user -name.<p> - -Also note that many passwd programs insist in "reasonable" passwords, -such as a minimum length, or the inclusion of mixed case chars and -digits. This can pose a problem as some clients (such as Windows for -Workgroups) uppercase the password before sending it. <p> - -.B Default: - passwd program = /bin/passwd<p> - -.B Example: - passwd program = /sbin/passwd %u<p> - -<a name="password level"> -<H3>password level (G)</H3> -Some client/server combinations have difficulty with mixed-case passwords. -One offending client is Windows for Workgroups, which for some reason forces -passwords to upper case when using the LANMAN1 protocol, but leaves them alone -when using COREPLUS!<p> - -This parameter defines the maximum number of characters that may be upper case -in passwords.<p> - -For example, say the password given was "FRED". If -.B password level -is set to 1 (one), the following combinations would be tried if "FRED" failed: -"Fred", "fred", "fRed", "frEd", "freD". If -.B password level was set to 2 (two), the following combinations would also be -tried: "FRed", "FrEd", "FreD", "fREd", "fReD", "frED". And so on.<p> - -The higher value this parameter is set to the more likely it is that a mixed -case password will be matched against a single case password. However, you -should be aware that use of this parameter reduces security and increases the -time taken to process a new connection.<p> - -A value of zero will cause only two attempts to be made - the password as is -and the password in all-lower case.<p> - -If you find the connections are taking too long with this option then -you probably have a slow crypt() routine. Samba now comes with a fast -"ufc crypt" that you can select in the Makefile. You should also make -sure the PASSWORD_LENGTH option is correct for your system in local.h -and includes.h. On most systems only the first 8 chars of a password -are significant so PASSWORD_LENGTH should be 8, but on some longer -passwords are significant. The includes.h file tries to select the -right length for your system.<p> - -.B Default: - password level = 0<p> - -.B Example: - password level = 4<p> - -<a name="password server"> -<H3>password server (G)</H3><p> - -By specifying the name of another SMB server (such as a WinNT box) -with this option, and using "security = server" you can get Samba to -do all its username/password validation via a remote server.<p> - -This options sets the name of the password server to use. It must be a -netbios name, so if the machine's netbios name is different from its -internet name then you may have to add its netbios name to -/etc/hosts.<p> - -The password server much be a machine capable of using the "LM1.2X002" -or the "LM NT 0.12" protocol, and it must be in user level security -mode. <p> - -NOTE: Using a password server means your UNIX box (running Samba) is -only as secure as your password server. DO NOT CHOOSE A PASSWORD -SERVER THAT YOU DON'T COMPLETELY TRUST.<p> - -Never point a Samba server at itself for password serving. This will -cause a loop and could lock up your Samba server!<p> - -The name of the password server takes the standard substitutions, but -probably the only useful one is %m, which means the Samba server will -use the incoming client as the password server. If you use this then -you better trust your clients, and you better restrict them with hosts -allow!<p> - -If you list several hosts in the "password server" option then smbd -will try each in turn till it finds one that responds. This is useful -in case your primary server goes down.<p> - -If you are using a WindowsNT server as your password server then you -will have to ensure that your users are able to login from the Samba -server, as the network logon will appear to come from there rather -than from the users workstation.<p> - -<a name="path"> -<H3>path (S)</H3> -A synonym for this parameter is 'directory'.<p> - -This parameter specifies a directory to which the user of the service is to +to set this parameter. <P> +<B>Default:</B> max mux = 50 <P> + +<H3><A NAME="max packet">max packet (G)</A></H3> +A synonym for this parameter is 'packet size'. <P> +The maximum transmit packet size during a raw read. This option is no longer +implemented as of version 1.7.00, and is kept only so old configuration files +do not become invalid. <P> + +<H3><A NAME="max ttl">max ttl (G)</A></H3> +This option tells nmbd what the default 'time to live' of NetBIOS names should +be (in seconds) when nmbd is requesting a name using either a broadcast +or from a WINS server. You should never need to change this parameter. <P> +<B>Default:</B> max ttl = 14400 <P> + +<H3><A NAME="max wins ttl">max wins ttl (G)</A></H3> +This option tells nmbd when acting as a WINS server +(<A HREF="#wins support">wins support</A> = Yes) what the maximum 'time to +live' of NetBIOS names that nmbd will grant will be (in seconds). You should +never need to change this parameter. The default is 3 days (259200 +seconds). <P> +<B>Default:</B> max wins ttl = 259200 <P> + +<H3><A NAME="max xmit">max xmit (G)</A></H3> +This option controls the maximum packet size that will be negotiated by +Samba. The default is 65535, which is the maximum. In some cases you may find +you get better performance with a smaller value. A value below 2048 is likely +to cause problems. <P> +<B>Default:</B> max xmit = 65535 <P> +<B>Example:</B> max xmit = 8192 <P> + +<H3><A NAME="message command">message command (G)</A></H3> +This specifies what command to run when the server receives a WinPopup style +message. <P> +This would normally be a command that would deliver the message somehow. +How this is to be done is up to your imagination. <P> +What I use is: <P> +message command = csh -c 'xedit %s;rm %s' & <P> +This delivers the message using xedit, then removes it afterwards. NOTE +THAT IT IS VERY IMPORTANT THAT THIS COMMAND RETURN IMMEDIATELY. That's why +I have the & on the end. If it doesn't return immediately then your PCs may +freeze when sending messages (they should recover after 30secs, hopefully). <P> +All messages are delivered as the global guest user. The command takes +the standard substitutions, although %u won't work (%U may be better in +this case). <P> +Apart from the standard substitutions, some additional ones apply. In +particular: <P> +%s = the filename containing the message <P> +%t = the destination that the message was sent to (probably the server name) <P> +%f = who the message is from <P> +You could make this command send mail, or whatever else takes your fancy. +Please let me know of any really interesting ideas you have. <P> +Here's a way of sending the messages as mail to root: <P> +message command = /bin/mail -s 'message from %f on %m' root < %s; rm %s <P> +If you don't have a message command then the message won't be delivered and +Samba will tell the sender there was an error. Unfortunately WfWg totally +ignores the error code and carries on regardless, saying that the message was +delivered. <P> +If you want to silently delete it then try "message command = rm %s". <P> +For the really adventurous, try something like this: <P> +message command = csh -c 'csh < %s |& /usr/local/samba/bin/smbclient \ + -M %m; rm %s' & <P> +this would execute the command as a script on the server, +then give them the result in a WinPopup message. Note that this could cause +a loop if you send a message from the server using smbclient! You better +wrap the above in a script that checks for this :-) <P> +<B>Default:</B> no message command <P> +<B>Example:</B> message command = csh -c 'xedit %s;rm %s' & <P> + +<H3><A NAME="min print space">min print space (S)</A></H3> +This sets the minimum amount of free disk space that must +be available before a user will be able to spool a print job. It is specified +in kilobytes. The default is 0, which means no limit. <P> +<B>Default:</B> min print space = 0 <P> +<B>Example:</B> min print space = 2000 <P> + +<H3><A NAME="min wins ttl">min wins ttl (G)</A></H3> +This option tells nmbd when acting as a WINS server +(<A HREF="#wins support">wins support</A> = Yes) what the +minimum 'time to live' of NetBIOS names that nmbd will grant will be (in +seconds). You should never need to change this parameter. The default is +6 hours (21600 seconds). <P> +<B>Default:</B> min wins ttl = 21600 <P> + +<H3><A NAME="name resolve order">name resolve order (G)</A></H3> +This option is used by the programs smbd, nmbd and smbclient +to determine what naming services and in what order to resolve host names +to IP addresses. This option is most useful in smbclient. The option takes +a space separated string of different name resolution options. These are +"lmhosts", "host", "wins" and "bcast". They cause names to be resolved +as follows : <P> +<pre> +lmhosts Lookup an IP address in the Samba lmhosts file. +host Do a standard host name to IP address resolution, using the + system /etc/hosts, NIS, or DNS lookups. This method of name + resolution is operating system depended (for instance on Solaris + this may be controlled by the /etc/nsswitch.conf file). +wins Query a name with the IP address listed in the "wins server =" + parameter. If no WINS server has been specified this method will + be ignored. +bcast Do a broadcast on each of the known local + interfaces listed in the "interfaces =" parameter. This is the + least reliable of the name resolution methods as it depends + on the target host being on a locally connected subnet. +</pre> +The default order is lmhosts, host, wins, bcast and these name resolution +methods will be attempted in this order. <P> +This option was first introduced in Samba 1.9.18p4. <P> +<B>Default:</B> name resolve order = lmhosts host wins bcast <P> +<B>example:</B> name resolve order = lmhosts bcast host <P> +This will cause the local lmhosts file to be examined first, followed by a +broadcast attempt, followed by a normal system hostname lookup. <P> + +<H3><A NAME="netbios aliases">netbios aliases (G)</A></H3> +This is a list of names that nmbd will advertise as additional names by which +the Samba server is known. This allows one machine to appear in browse +lists under multiple names. If a machine is acting as a browse server or +logon server none of these names will be advertised as either browse server +or logon servers, only the primary name of the machine will be advertised +with these capabilities. <P> +See also <A HREF="#netbios name">netbios name</A>. <P> +<B>Example:</B>netbios aliases = TEST TEST1 TEST2 <P> + +<H3><A NAME="netbios name">netbios name (G)</A></H3> +This sets the NetBIOS name by which a Samba server is known. By default it is +the same as the first component of the host's DNS name. If a machine is a +browse server or logon server this name (or the first component of the hosts +DNS name) will be the name that these services are advertised under. <P> +See also <A HREF="#netbios aliases">netbios aliases</A>. <P> +<B>Example:</B> netbios name = MYNAME <P> + +<H3><A NAME="NIS homedir">NIS homedir (G)</A></H3> +Get the home share server from a NIS (or YP) map. For unix systems that use +an automounter, the user's home directory will often be mounted on a +workstation on demand from a remote server. When the Samba logon server is +not the actual home directory server, two network hops are required to access +the home directory and this can be very slow especially with writing via +Samba to an NFS mounted directory. This option allows samba to return the +home share as being on a different server to the logon server and as long as +a samba daemon is running on the home directory server, it will be mounted +on the Samba client directly from the directory server. When Samba is +returning the home share to the client, it will consult the NIS (or YP) map +specified in <A HREF="#homedir map">homedir map</A> and return the server +listed there. <P> +<B>Default:</B> NIS homedir = No <P> +<B>Example:</B> NIS homedir = Yes <P> + +<H3><A NAME="networkstation user login">networkstation user login (G)</A></H3> +This global parameter (new for 1.9.18p3) affects server level security. With +this set (recommended) samba will do a full NetWkstaUserLogon to confirm that +the client really should have login rights. This can cause problems with +machines in trust relationships in which case you can disable it here, +but be warned, we have heard that some NT machines will then allow anyone +in with any password! Make sure you test it. <P> +<B>Default:</B> networkstation user login = Yes <P> +<B>Example:</B> networkstation user login = No <P> + +<H3><A NAME="null passwords">null passwords (G)</A></H3> +Allow or disallow access to accounts that have null passwords. <P> +<B>Default:</B> null passwords = No <P> +<B>Example:</B> null passwords = Yes <P> + +<H3><A NAME="only user">only user (S)</A></H3> +This is a boolean option that controls whether connections with usernames not +in the <A HREF="#username">username</A> list will be allowed. By default this +option is disabled so a client can supply a username to be used by the +server. <P> +Note that this also means Samba won't try to deduce usernames from the +service name. This can be annoying for the [homes] section. To get around +this you could use "<A HREF="#username">username</A> = %S" which means your +"username" list will be just the service name, which for home directories +is the name of the user. <P> +<B>Default: </B> only user = No <P> +<B>Example: </B> only user = Yes <P> + +<H3><A NAME="oplocks">oplocks (S)</A></H3> +This boolean option tells smbd whether to issue oplocks (opportunistic locks) +to file open requests on this share. The oplock code +was introduced in Samba 1.9.18 and can dramatically (approx 30% or more) +improve the speed of access to files on Samba servers. It allows the clients +to agressively cache files locally and you may want to disable this option +for unreliable network environments (it is turned on by default in Windows +NT Servers). For more information see the file Speed.txt in the Samba docs/ +directory. <P> +Oplocks may be selectively turned off on certain files on a per share basis. +See the <A HREF="#veto oplock files">veto oplock files</A> parameter. <P> +<B>Default:</B> oplocks = Yes <P> +<B>Example:</B> oplocks = No <P> + +<H3><A NAME="os level">os level (G)</A></H3> +This integer value controls what level Samba advertises itself as for browse +elections. See BROWSING.txt for details. <P> + +<H3><A NAME="passwd chat debug">passwd chat debug (G)</A></H3> +<B>Default: </B> passwd chat debug = No <P> + +<H3><A NAME="passwd chat">passwd chat (G)</A></H3> +This string controls the "chat" conversation that takes places +between smbd and the local password changing program to change the users +password. The string describes a sequence of response-receive pairs that +smbd uses to determine what to send to the passwd program and what to +expect back. If the expected output is not received then the password is +not changed. <P> +This chat sequence is often quite site specific, depending +on what local methods are used for password control (such as NIS+ etc). <P> +The string can contain the macros %o and %n which are substituted for +the old and new passwords respectively. It can also contain the standard +macros \n \r \t and \s to give line-feed, carriage-return, tab and space. <P> +The string can also contain a * which matches any sequence of characters. <P> +Double quotes can be used to collect strings with spaces in them into +a single string. <P> +If the send string in any part of the chat sequence is +a fullstop "." then no string is sent. Similarly, is the expect string is +a fullstop then no string is expected. <P> +<B>Default:</B> passwd chat = *old*password* %o\n *new*password* %n\n *new*password* %n\n *changed* <P> +<B>Example:</B> passwd chat = "*Enter OLD password*" %o\n "*Enter NEW password*" %n\n \ + "*Reenter NEW password*" %n\n "*Password changed*" <P> + +<H3><A NAME="passwd program">passwd program (G)</A></H3> +The name of a program that can be used to set user passwords. <P> +This is only necessary if you have enabled remote password changing at +compile time. Any occurrences of %u will be replaced with the user name. <P> +Also note that many passwd programs insist in "reasonable" +passwords, such as a minimum length, or the inclusion of mixed case chars +and digits. This can pose a problem as some clients (such as Windows for +Workgroups) uppercase the password before sending it. <P> +<B>Default:</B> passwd program = /bin/passwd <P> +<B>Example:</B> passwd program = /sbin/passwd %u <P> + +<H3><A NAME="password level">password level (G)</A></H3> +Some client/server combinations have difficulty with mixed-case +passwords. One offending client is Windows for Workgroups, which for some +reason forces passwords to upper case when using the LANMAN1 protocol, +but leaves them alone when using COREPLUS! <P> +This parameter defines the maximum number of characters that may be upper +case in passwords. <P> +For example, say the password given was "FRED". If password level is set to +1 (one), the following combinations would be tried if "FRED" failed: "Fred", +"fred", "fRed", "frEd", "freD". If password level was set to 2 (two), the +following combinations would also be tried: "FRed", "FrEd", "FreD", "fREd", +"fReD", "frED". And so on. <P> +The higher value this parameter is set to the more likely it is that a mixed +case password will be matched against a single case password. However, you +should be aware that use of this parameter reduces security and increases the +time taken to process a new connection. <P> +A value of zero will cause only two attempts to be made - the password +as is and the password in all-lower case. <P> +If you find the connections are taking too long with this option then you +probably have a slow crypt() routine. Samba now comes with a fast "ufc crypt" +that you can select in the Makefile. You should also make sure the +PASSWORD_LENGTH option is correct for your system in local.h and includes.h. +On most systems only the first 8 chars of a password are significant so +PASSWORD_LENGTH should be 8, but on some longer passwords are significant. +The includes.h file tries to select the right length for your system. <P> +<B>Default:</B> password level = 0 <P> +<B>Example:</B> password level = 4 <P> + +<H3><A NAME="password server">password server (G)</A></H3> +By specifying the name of another SMB server (such as a WinNT box) with this +option, and using "<A HREF="#security">security</A> = server" you can get +Samba to do all its username/password validation via a remote server. <P> +This options sets the name of the password server to use. It must be a netbios +name, so if the machine's netbios name is different from its internet name +then you may have to add its netbios name to /etc/hosts. <P> +Note that with Samba 1.9.18p4 and above the name of the password server is +looked up using the <A HREF="#name resolve order">name resolve order</A> +parameter and so may resolved by any method and order described in that +parameter. <P> +The password server much be a machine capable of using the "LM1.2X002" +or the "LM NT 0.12" protocol, and it must be in user level security mode. <P> +NOTE: Using a password server means your UNIX box (running Samba) is +only as secure as your password server. DO NOT CHOOSE A PASSWORD SERVER +THAT YOU DON'T COMPLETELY TRUST. <P> +Never point a Samba server at itself for password serving. This will cause a +loop and could lock up your Samba server! <P> +The name of the password server takes the standard substitutions, but +probably the only useful one is %m, which means the Samba server will +use the incoming client as the password server. If you use this then you +better trust your clients, and you better restrict them with +<A HREF="#hosts allow">hosts allow</A>! <P> +If you list several hosts in the "password server" option then smbd will +try each in turn till it finds one that responds. This is useful in case +your primary server goes down. <P> +If you are using a WindowsNT server as your password server then you will +have to ensure that your users are able to login from the Samba server, as +the network logon will appear to come from there rather than from the users +workstation. <P> + +<H3><A NAME="path">path (S)</A></H3> +A synonym for this parameter is "directory". <P> +This parameter specifies a directory to which the user of the service is to be given access. In the case of printable services, this is where print data -will spool prior to being submitted to the host for printing.<p> - -For a printable service offering guest access, the service should be readonly -and the path should be world-writable and have the sticky bit set. This is not -mandatory of course, but you probably won't get the results you expect if you -do otherwise.<p> - -Any occurrences of %u in the path will be replaced with the username -that the client is connecting as. Any occurrences of %m will be -replaced by the name of the machine they are connecting from. These -replacements are very useful for setting up pseudo home directories -for users.<p> - -Note that this path will be based on 'root dir' if one was specified. -.B Default: - none<p> - -.B Example: - path = /home/fred+ <p> - -<a name="postexec"> -<H3>postexec (S)</H3><p> - -This option specifies a command to be run whenever the service is -disconnected. It takes the usual substitutions. The command may be run -as the root on some systems.<p> - -An interesting example may be do unmount server resources:<p> - -postexec = /etc/umount /cdrom<p> - -See also preexec<p> - -.B Default: - none (no command executed)<p> - -.B Example: - postexec = echo \e"%u disconnected from %S from %m (%I)\e" >> /tmp/log<p> - -<a name="postscript"> -<H3>postscript (S)</H3> -This parameter forces a printer to interpret the print files as -postscript. This is done by adding a %! to the start of print output. <p> - -This is most useful when you have lots of PCs that persist in putting -a control-D at the start of print jobs, which then confuses your -printer.<p> - -.B Default: - postscript = False<p> - -.B Example: - postscript = True<p> - -<a name="preexec"> -<H3>preexec (S)</H3><p> - -This option specifies a command to be run whenever the service is -connected to. It takes the usual substitutions.<p> - -An interesting example is to send the users a welcome message every -time they log in. Maybe a message of the day? Here is an example:<p> - -preexec = csh -c 'echo \e"Welcome to %S!\e" | \e - /usr/local/samba/bin/smbclient -M %m -I %I' &<p> - -Of course, this could get annoying after a while :-)<p> - -See also postexec<p> - -.B Default: - none (no command executed)<p> - -.B Example: - preexec = echo \e"%u connected to %S from %m (%I)\e" >> /tmp/log<p> - -<a name="preferred master"> -<H3>preferred master (G)</H3> -This boolean parameter controls if Samba is a preferred master browser -for its workgroup. -If this is set to true, on startup, samba will force an election, -and it will have a slight advantage in winning the election. -It is recommended that this parameter is used in conjunction -with domain master = yes, so that samba can guarantee becoming -a domain master. <p> - -Use this option with caution, because if there are several hosts -(whether samba servers, Windows 95 or NT) that are preferred master -browsers on the same subnet, they will each periodically and continuously -attempt to become the local master browser. This will result in -unnecessary broadcast traffic and reduced browsing capabilities.<p> - -See -.B os level = nn<p> - -.B Default: - preferred master = no<p> - -<H3>preload</H3> -This is an alias for "auto services"<p> - -<a name="preload"> -<H3>preload</H3> -This is an alias for "auto services"<p> - -<a name="preserve case"> -<H3>preserve case (S)</H3><p> - -This controls if new filenames are created with the case that the -client passes, or if they are forced to be the "default" case.<p> - -.B Default: - preserve case = no<p> - -See the section on "NAME MANGLING" for a fuller discussion.<p> - -<a name="print command"> -<H3>print command (S)</H3> -After a print job has finished spooling to a service, this command will be +will spool prior to being submitted to the host for printing. <P> +For a printable service offering guest access, the service should be readonly +and the path should be world-writable and have the sticky bit set. This is +not mandatory of course, but you probably won't get the results you expect if +you do otherwise. <P> +Any occurrences of %u in the path will be replaced with the username that the +client is connecting as. Any occurrences of %m will be replaced by the name +of the machine they are connecting from. These replacements are very useful +for setting up pseudo home directories for users. <P> +Note that this path will be based on +<A HREF="#root directory">root directory</A> if one was specified.<P> +<B>Default:</B> none <P> +<B>Example:</B> path = /home/fred <P> + +<H3><A NAME="postexec">postexec (S)</A></H3> +This option specifies a command to be run whenever the +service is disconnected. It takes the usual substitutions. The command may +be run as the root on some systems. <P> +An interesting example may be do unmount server resources: <P> +postexec = /etc/umount /cdrom <P> +See also <A HREF="#preexec">preexec</A> <P> +<B>Default:</B> none (no command executed) <P> +<B>Example:</B> postexec = echo \"%u disconnected from %S from %m (%I)\" >> /tmp/log <P> + +<H3><A NAME="postscript">postscript (S)</A></H3> +This parameter forces a printer to interpret the print files as postscript. +This is done by adding a %! to the start of print output. <P> +This is most useful when you have lots of PCs that persist in putting a +control-D at the start of print jobs, which then confuses your printer. <P> +<B>Default:</B> postscript = No <P> +<B>Example:</B> postscript = Yes <P> + +<H3><A NAME="preferred master">preferred master (G)</A></H3> +This boolean parameter controls if Samba is a preferred master browser for +its workgroup. If this is set to Yes, on startup, samba will force an +election, and it will have a slight advantage in winning the election. +It is recommended that this parameter is used in conjunction with +<A HREF="#domain master">domain master</A> = yes, so that samba can guarantee +becoming a domain master. <P> +Use this option with caution, because if there are several hosts (whether +samba servers, Windows 95 or NT) that are preferred master browsers on +the same subnet, they will each periodically and continuously attempt +to become the local master browser. This will result in unnecessary broadcast +traffic and reduced browsing capabilities. <P> +See <A HREF="#os level">os level</A> = nn <P> +<B>Default:</B> preferred master = no <P> + +<H3><A NAME="preload">preload</A></H3> +An alias is "auto services". This is a list of services that you want to be +automatically added to the browse lists. This is most useful for homes and +printers services that would otherwise not be visible. <P> +Note that if you just want all printers in your printcap file loaded then the +<A HREF="#load printers">load printers</A> option is easier. <P> +<B>Default:</B> no preloaded services <P> +<B>Example:</B> preload = fred lp colorlp <P> + +<H3><A NAME="preserve case">preserve case (S)</A></H3> +This controls if new filenames are created with the case that +the client passes, or if they are forced to be the "default" case. <P> +<B>Default:</B> preserve case = no <P> +See the section on <A HREF="#NAME MANGLING">NAME MANGLING</A> for a fuller +discussion. <P> + +<H3><A NAME="print command">print command (S)</A></H3> +After a print job has finished spooling to a service, this command will be used via a system() call to process the spool file. Typically the command -specified will submit the spool file to the host's printing subsystem, but -there is no requirement that this be the case. The server will not remove the -spool file, so whatever command you specify should remove the spool file when -it has been processed, otherwise you will need to manually remove old spool -files.<p> - -The print command is simply a text string. It will be used verbatim, -with two exceptions: All occurrences of "%s" will be replaced by the -appropriate spool file name, and all occurrences of "%p" will be -replaced by the appropriate printer name. The spool file name is -generated automatically by the server, the printer name is discussed -below.<p> - -The full path name will be used for the filename if %s is not preceded -by a /. If you don't like this (it can stuff up some lpq output) then -use %f instead. Any occurrences of %f get replaced by the spool -filename without the full path at the front.<p> - -The print command MUST contain at least one occurrence of "%s" or %f - -the "%p" is optional. At the time a job is submitted, if no printer -name is supplied the "%p" will be silently removed from the printer -command.<p> - -If specified in the [global] section, the print command given will be used -for any printable service that does not have its own print command specified.<p> - +specified will submit the spool file to the host's printing subsystem, but +there is no requirement that this be the case. The server will not remove +the spool file, so whatever command you specify should remove the spool file +when it has been processed, otherwise you will need to manually remove old +spool files. <P> +The print command is simply a text string. It will be used verbatim, with +two exceptions: All occurrences of "%s" will be replaced by the appropriate +spool file name, and all occurrences of "%p" will be replaced by the +appropriate printer name. The spool file name is generated automatically by +the server, the <A HREF="#printer name">printer name</A> is discussed below. <P> +The full path name will be used for the filename if %s is not preceded by a +/. If you don't like this (it can stuff up some lpq output) then use %f +instead. Any occurrences of %f get replaced by the spool filename without +the full path at the front. <P> +The print command MUST contain at least one occurrence of "%s" or %f - +the "%p" is optional. At the time a job is submitted, if no printer name is +supplied the "%p" will be silently removed from the printer command. <P> +If specified in the [global] section, the print command given will be used for +any printable service that does not have its own print command specified.<P> If there is neither a specified print command for a printable service nor a -global print command, spool files will be created but not processed and (most -importantly) not removed.<p> - -Note that printing may fail on some UNIXes from the "nobody" -account. If this happens then create an alternative guest account that -can print and set the "guest account" in the [global] section.<p> - -You can form quite complex print commands by realising that they are -just passed to a shell. For example the following will log a print -job, print the file, then remove it. Note that ; is the usual -separator for command in shell scripts.<p> - -print command = echo Printing %s >> /tmp/print.log; lpr -P %p %s; rm %s<p> - -You may have to vary this command considerably depending on how you -normally print files on your system.<p> - -.B Default: - print command = lpr -r -P %p %s<p> - -.B Example: - print command = /usr/local/samba/bin/myprintscript %p %s -<a name="print ok"> -<H3>print ok (S)</H3> -See -.B printable. -<a name="printable"> -<H3>printable (S)</H3> -A synonym for this parameter is 'print ok'.<p> - -If this parameter is 'yes', then clients may open, write to and submit spool -files on the directory specified for the service.<p> - -Note that a printable service will ALWAYS allow writing to the service path -(user privileges permitting) via the spooling of print data. The 'read only' -parameter controls only non-printing access to the resource.<p> - -.B Default: - printable = no<p> - -.B Example: - printable = yes<p> - -<a name="printcap name"> -<H3>printcap name (G)</H3> -This parameter may be used to override the compiled-in default printcap -name used by the server (usually /etc/printcap). See the discussion of the -[printers] section above for reasons why you might want to do this.<p> - -On SystemV systems that use lpstat to list available printers you -can use "printcap name = lpstat" to automatically obtain lists of -available printers. This is the default for systems that define -SYSV at compile time in Samba (this includes most SystemV based -systems). If "printcap name" is set to lpstat on these systems then -Samba will launch "lpstat -v" and attempt to parse the output to -obtain a printer list.<p> - -A minimal printcap file would look something like this:<p> - -print1|My Printer 1 -.br -print2|My Printer 2 -.br -print3|My Printer 3 -.br -print4|My Printer 4 -.br -print5|My Printer 5<p> - -where the | separates aliases of a printer. The fact that the second -alias has a space in it gives a hint to Samba that it's a comment.<p> - -NOTE: Under AIX the default printcap name is "/etc/qconfig". Samba -will assume the file is in AIX "qconfig" format if the string -"/qconfig" appears in the printcap filename.<p> - -.B Default: - printcap name = /etc/printcap<p> - -.B Example: - printcap name = /etc/myprintcap<p> - -<a name="printer"> -<H3>printer (S)</H3> -A synonym for this parameter is 'printer name'.<p> - -This parameter specifies the name of the printer to which print jobs spooled -through a printable service will be sent.<p> - -If specified in the [global] section, the printer name given will be used -for any printable service that does not have its own printer name specified.<p> - -.B Default: - none (but may be 'lp' on many systems)<p> - -.B Example: - printer name = laserwriter<p> - -<a name="printer driver"> -<H3>printer driver (S)</H3> -This option allows you to control the string that clients receive when -they ask the server for the printer driver associated with a -printer. If you are using Windows95 or WindowsNT then you can use this -to automate the setup of printers on your system.<p> - -You need to set this parameter to the exact string (case sensitive) -that describes the appropriate printer driver for your system. -If you don't know the exact string to use then you should first try -with no "printer driver" option set and the client will give you a -list of printer drivers. The appropriate strings are shown in a -scrollbox after you have chosen the printer manufacturer.<p> - -.B Example: - printer driver = HP LaserJet 4L<p> - -<a name="printer name"> -<H3>printer name (S)</H3> -See -.B printer.<p> - -<a name="printer driver file"> -<H3>printer driver file (G)</H3> -This parameter tells Samba where the printer driver definition file, -used when serving drivers to Windows 95 clients, is to be found. If -this is not set, the default is :<p> - -SAMBA_INSTALL_DIRECTORY/lib/printers.def<p> - -This file is created from Windows 95 'msprint.def' files found on the -Windows 95 client system. For more details on setting up serving of -printer drivers to Windows 95 clients, see the documentation file -docs/PRINTER_DRIVER.txt.<p> - -.B Default: - None (set in compile).<p> - -.B Example: - printer driver file = /usr/local/samba/printers/drivers.def<p> - -Related parameters. -.B printer driver location<p> - -<a name="printer driver location"> -<H3>printer driver location (S)</H3> -This parameter tells clients of a particular printer share where -to find the printer driver files for the automatic installation -of drivers for Windows 95 machines. If Samba is set up to serve -printer drivers to Windows 95 machines, this should be set to<p> - -\e\eMACHINE\ePRINTER$<p> - -Where MACHINE is the NetBIOS name of your Samba server, and PRINTER$ -is a share you set up for serving printer driver files. For more -details on setting this up see the documentation file -docs/PRINTER_DRIVER.txt.<p> - -.B Default: - None<p> - -.B Example: - printer driver location = \e\eMACHINE\ePRINTER$<p> - -Related paramerers. -.B printer driver file<p> - - -<a name="printing"> -<H3>printing (S)</H3> -This parameters controls how printer status information is interpreted -on your system, and also affects the default values for the "print -command", "lpq command" and "lprm command".<p> - -Currently six printing styles are supported. They are "printing = -bsd", "printing = sysv", "printing = hpux", "printing = aix", -"printing = qnx" and "printing = plp".<p> - -To see what the defaults are for the other print commands when using -these three options use the "testparm" program.<p> - -As of version 1.9.18 of Samba this option can be set on a per printer basis<p> - -<a name="protocol"> -<H3>protocol (G)</H3> -The value of the parameter (a string) is the highest protocol level that will -be supported by the server. <p> - -Possible values are CORE, COREPLUS, LANMAN1, LANMAN2 and NT1. The relative -merits of each are discussed in the README file.<p> - -Normally this option should not be set as the automatic negotiation -phase in the SMB protocol takes care of choosing the appropriate protocol.<p> - -.B Default: - protocol = NT1<p> - -.B Example: - protocol = LANMAN1 -<a name="public"> -<H3>public (S)</H3> -A synonym for this parameter is 'guest ok'.<p> - -If this parameter is 'yes' for a service, then no password is required -to connect to the service. Privileges will be those of the guest -account.<p> - -See the section below on user/password validation for more information about -this option.<p> - -.B Default: - public = no<p> - -.B Example: - public = yes -<a name="read list"> -<H3>read list (S)</H3> -This is a list of users that are given read-only access to a -service. If the connecting user is in this list then they will -not be given write access, no matter what the "read only" option -is set to. The list can include group names using the @group syntax.<p> - -See also the "write list" option<p> - -.B Default: - read list =<p> - -.B Example: - read list = mary, @students<p> - -<a name="read only"> -<H3>read only (S)</H3> -See -.B writable -and -.B write ok. -Note that this is an inverted synonym for writable and write ok. -<a name="read prediction"> -<H3>read prediction (G)</H3> -This options enables or disables the read prediction code used to -speed up reads from the server. When enabled the server will try to -pre-read data from the last accessed file that was opened read-only -while waiting for packets.<p> - -<H3>Default:</H3> - read prediction = False<p> - -<H3>Example:</H3> - read prediction = True -<a name="Default:</H3> - read prediction = False<p> - -<H3>Example:</H3> - read prediction = True -<H3>read raw"> -<H3>read raw (G)</H3> -This parameter controls whether or not the server will support raw reads when -transferring data to clients.<p> - -If enabled, raw reads allow reads of 65535 bytes in one packet. This -typically provides a major performance benefit.<p> - -However, some clients either negotiate the allowable block size incorrectly -or are incapable of supporting larger block sizes, and for these clients you -may need to disable raw reads.<p> - -In general this parameter should be viewed as a system tuning tool and left -severely alone. See also -.B write raw.<p> - -.B Default: - read raw = yes<p> - -.B Example: - read raw = no -<a name="read size"> -<H3>read size (G)</H3><p> - -The option "read size" affects the overlap of disk reads/writes with -network reads/writes. If the amount of data being transferred in -several of the SMB commands (currently SMBwrite, SMBwriteX and -SMBreadbraw) is larger than this value then the server begins writing -the data before it has received the whole packet from the network, or -in the case of SMBreadbraw, it begins writing to the network before -all the data has been read from disk.<p> - -This overlapping works best when the speeds of disk and network access -are similar, having very little effect when the speed of one is much -greater than the other.<p> - -The default value is 2048, but very little experimentation has been -done yet to determine the optimal value, and it is likely that the best -value will vary greatly between systems anyway. A value over 65536 is -pointless and will cause you to allocate memory unnecessarily.<p> - -.B Default: - read size = 2048<p> - -.B Example: - read size = 8192<p> - -<a name="remote announce"> -<H3>remote announce (G)</H3><p> - -This option allows you to setup nmbd to periodically announce itself -to arbitrary IP addresses with an arbitrary workgroup name. <p> - -This is useful if you want your Samba server to appear in a remote -workgroup for which the normal browse propagation rules don't -work. The remote workgroup can be anywhere that you can send IP -packets to.<p> - -For example:<p> - - remote announce = 192.168.2.255/SERVERS 192.168.4.255/STAFF<p> - -the above line would cause nmbd to announce itself to the two given IP -addresses using the given workgroup names. If you leave out the -workgroup name then the one given in the "workgroup" option is used -instead. <p> - -The IP addresses you choose would normally be the broadcast addresses -of the remote networks, but can also be the IP addresses of known -browse masters if your network config is that stable.<p> - -This option replaces similar functionality from the nmbd lmhosts file.<p> - -<a name="remote browse sync"> -<H3>remote browse sync (G)</H3><p> - -This option allows you to setup nmbd to periodically request synchronisation -of browse lists with the master browser of a samba server that is on a remote -segment. This option will allow you to gain browse lists for multiple -workgroups across routed networks. This is done in a manner that does not work -with any non-samba servers.<p> - -This is useful if you want your Samba server and all local clients -to appear in a remote workgroup for which the normal browse propagation -rules don't work. The remote workgroup can be anywhere that you can send IP -packets to.<p> - -For example:<p> - - remote browse sync = 192.168.2.255 192.168.4.255<p> - -the above line would cause nmbd to request the master browser on the -specified subnets or addresses to synchronise their browse lists with -the local server.<p> - -The IP addresses you choose would normally be the broadcast addresses -of the remote networks, but can also be the IP addresses of known -browse masters if your network config is that stable. If a machine IP -address is given Samba makes NO attempt to validate that the remote -machine is available, is listening, nor that it is in fact the browse -master on it's segment.<p> - - -<a name="revalidate"> -<H3>revalidate (S)</H3><p> - -This options controls whether Samba will allow a previously validated -username/password pair to be used to attach to a share. Thus if you -connect to \e\eserver\eshare1 then to \e\eserver\eshare2 it won't -automatically allow the client to request connection to the second -share as the same username as the first without a password.<p> - -If "revalidate" is True then the client will be denied automatic -access as the same username.<p> - -.B Default: - revalidate = False<p> - -.B Example: - revalidate = True<p> - -<a name="root"> -<H3>root (G)</H3> -See -.B root directory. -<a name="root dir"> -<H3>root dir (G)</H3> -See -.B root directory. -<a name="root directory"> -<H3>root directory (G)</H3> -Synonyms for this parameter are 'root dir' and 'root'.<p> - -The server will chroot() to this directory on startup. This is not -strictly necessary for secure operation. Even without it the server -will deny access to files not in one of the service entries. It may -also check for, and deny access to, soft links to other parts of the -filesystem, or attempts to use .. in file names to access other -directories (depending on the setting of the "wide links" parameter).<p> - -Adding a "root dir" entry other than "/" adds an extra level of security, -but at a price. It absolutely ensures that no access is given to files not -in the sub-tree specified in the "root dir" option, *including* some files -needed for complete operation of the server. To maintain full operability -of the server you will need to mirror some system files into the "root dir" -tree. In particular you will need to mirror /etc/passwd (or a subset of it), -and any binaries or configuration files needed for printing (if required). -The set of files that must be mirrored is operating system dependent.<p> - -.B Default: - root directory = /<p> - -.B Example: - root directory = /homes/smb -<a name="root postexec"> -<H3>root postexec (S)</H3><p> - -This is the same as postexec except that the command is run as -root. This is useful for unmounting filesystems (such as cdroms) after -a connection is closed.<p> - -<a name="root preexec"> -<H3>root preexec (S)</H3><p> - -This is the same as preexec except that the command is run as -root. This is useful for mounting filesystems (such as cdroms) before -a connection is finalised.<p> - -<a name="security"> -<H3>security (G)</H3> -This option affects how clients respond to Samba.<p> - -The option sets the "security mode bit" in replies to protocol negotiations +global print command, spool files will be created but not processed and (most +importantly) not removed. <P> +Note that printing may fail on some UNIXes from the "nobody" account. If this +happens then create an alternative guest account that can print and set the +<A HREF="#guest account">guest account</A> in the [global] section. <P> +You can form quite complex print commands by realising that they are +just passed to a shell. For example the following will log a print job, +print the file, then remove it. Note that ; is the usual separator for +command in shell scripts. <P> +print command = echo Printing %s >> /tmp/print.log; lpr -P %p %s; rm %s<P> +You may have to vary this command considerably depending on how you normally +print files on your system. <P> +<B>Default:</B> print command = lpr -r -P %p %s <P> +<B>Example:</B>print command = /usr/local/samba/bin/myprintscript %p %s <P> + +<H3><A NAME="print ok">print ok (S)</A></H3> +A synonym for this parameter is 'printable'. <P> +If this parameter is 'Yes', then clients may open, write to +and submit spool files on the directory specified for the service. <P> +Note that a printable service will ALWAYS allow writing to the service path +(user privileges permitting) via the spooling of print data. The +<A HREF="#read only">read only</A> parameter controls only non-printing +access to the resource. <P> +<B>Default:</B> print ok = No <P> +<B>Example:</B> print ok = Yes <P> + +<H3><A NAME="printcap name">printcap name (G)</A></H3> +This parameter may be used to override the compiled-in default printcap name +used by the server (usually /etc/printcap). On SystemV systems that +use lpstat to list available printers you can use "printcap name = lpstat" +to automatically obtain lists of available printers. This is the default +for systems that define SYSV at compile time in Samba (this includes +most SystemV based systems). If "printcap name" is set to lpstat on these +systems then Samba will launch "lpstat -v" and attempt to parse the output +to obtain a printer list. <P> +A minimal printcap file would look something like this: <P> +print1|My Printer 1 <BR> +print2|My Printer 2 <BR> +print3|My Printer 3 <BR> +print4|My Printer 4 <BR> +print5|My Printer 5 <P> +where the | separates aliases of a printer. The fact that the second alias +has a space in it gives a hint to Samba that it's a comment. <P> +NOTE: Under AIX the default printcap name is "/etc/qconfig". +Samba will assume the file is in AIX "qconfig" format if the string "/qconfig" +appears in the printcap filename. <P> +<B>Default:</B> printcap name = /etc/printcap <P> +<B>Example:</B> printcap name = /etc/myprintcap <P> + +<H3><A NAME="printer driver">printer driver (S)</A></H3> +This option allows you to control the string that clients receive when they +ask the server for the printer driver associated with a printer. If you are +using Windows95 or WindowsNT then you can use this to automate the setup of +printers on your system. <P> +You need to set this parameter to the exact string (case sensitive) that +describes the appropriate printer driver for your system. If you don't know +the exact string to use then you should first try with no "printer driver" +option set and the client will give you a list of printer drivers. The +appropriate strings are shown in a scrollbox after you have chosen the +printer manufacturer. <P> +<B>Example:</B> printer driver = HP LaserJet 4L <P> + +<H3><A NAME="printer name">printer name (S)</A></H3> +A synonym for this parameter is 'printer'. <P> +This parameter specifies the name of the printer to which print jobs spooled +through a printable service will be sent. <P> +If specified in the [global] section, the printer name given will be used for +any printable service that does not have its own printer name specified. <P> +<B>Default:</B> none (but may be 'lp' on many systems) <P> +<B>Example:</B> printer name = laserwriter <P> + +<H3><A NAME="printer driver file">printer driver file (G)</A></H3> +This parameter tells Samba where the printer driver definition file, used +when serving drivers to Windows 95 clients, is to be found. If this is not +set, the default is : <P> +SAMBA_INSTALL_DIRECTORY/lib/printers.def <P> +This file is created from Windows 95 'msprint.def' files found on the Windows +95 client system. For more details on setting up serving of printer drivers +to Windows 95 clients, see the documentation file docs/PRINTER_DRIVER.txt. <P> +<B>Default:</B> None (set in compile). <P> +<B>Example:</B> printer driver file = /usr/local/samba/printers/drivers.def <P> +Related parameters. +<A HREF="#printer driver location">printer driver location</A> <P> + +<H3><A NAME="printer driver location">printer driver location (S)</A></H3> +This parameter tells clients of a particular printer share where to find the +printer driver files for the automatic installation of drivers for Windows 95 +machines. If Samba is set up to serve printer drivers to Windows 95 machines, +this should be set to <P> +\\MACHINE\PRINTER$ <P> +Where MACHINE is the NetBIOS name of your Samba +server, and PRINTER$ is a share you set up for serving printer driver +files. For more details on setting this up see the documentation file +docs/PRINTER_DRIVER.txt. <P> +<B>Default:</B> None <P> +<B>Example:</B> printer driver location = \\MACHINE\PRINTER$ <P> +Related paramerers. +<A HREF="#printer driver file">printer driver file</A><P> + +<H3><A NAME="printing">printing (S)</A></H3> +This parameters controls how printer status information is interpreted +on your system, and also affects the default values for the +<A HREF="#print command">print command</A>, +<A HREF="#lpq command">lpq command</A> and +<A HREF="#lprm command">lprm command</A>. <P> +Currently six printing styles are supported. They are bsd, sysv, hpux, aix, +qnx and plp. <P> +To see what the defaults are for the other print commands when using these +options use the "testparm" program. <P> +As of version 1.9.18 of Samba this option can be set on a per printer basis <P> +<B>Example:</B> printing = sysv <P> + +<H3><A NAME="protocol">protocol (G)</A></H3> +The value of the parameter (a string) is the highest protocol level that will +be supported by the server. <P> +Possible values are CORE, COREPLUS, LANMAN1, LANMAN2 and NT1. The relative +merits of each are discussed in the README file. <P> +Normally this option should not be set as the automatic negotiation phase in +the SMB protocol takes care of choosing the appropriate protocol. <P> +<B>Default:</B> protocol = NT1 <P> +<B>Example:</B> protocol = LANMAN1 <P> + +<H3><A NAME="read bmpx">read bmpx (S)</A></H3> +<B>Default:</B> read bmpx = Yes <P> + +<H3><A NAME="read list">read list (S)</A></H3> +This is a list of users that are given read-only access to a service. +If the connecting user is in this list then they will not be given write +access, no matter what the <A HREF="#read only">read only</A> option is set +to. The list can include group names using the @group syntax. <P> +See also the <A HREF="#write list">write list</A> option <P> +<B>Default:</B> read list = <P> +<B>Example:</B> read list = mary, @students <P> + +<H3><A NAME="read only">read only (S)</A></H3> +Inverted synonyms for this parameter are 'writable' and 'write ok'. <P> +If this parameter is 'Yes', then users of the service may not create or +modify files in the service's directory. <P> +Note that a printable service ('<A HREF="#printable">printable</A> = Yes') +will ALWAYS allow writing to the directory (user privileges permitting), but +only via spooling operations. <P> +<B>Default:</B> read only = Yes <P> +<B>Examples:</B> read only = No <BR> +writable = No <BR> +write ok = Yes <P> + +<H3><A NAME="read prediction">read prediction (G)</A></H3> +This options enables or disables the read prediction code used to speed up +reads from the server. When enabled the server will try to pre-read data +from the last accessed file that was opened read-only while waiting for +packets. <P> +<B>Default:</B> read prediction = No <P> +<B>Example:</B> read prediction = Yes <P> + +<H3><A NAME="read raw">read raw (G)</A></H3> +This parameter controls whether or not the server will support raw reads when +transferring data to clients. <P> +If enabled, raw reads allow reads of 65535 bytes in one packet. This typically +provides a major performance benefit. <P> +However, some clients either negotiate the allowable block size incorrectly +or are incapable of supporting larger block sizes, and for these clients you +may need to disable raw reads. <P> +In general this parameter should be viewed as a system tuning tool and left +severely alone. See also <A HREF="#write raw">write raw.</A> <P> +<B>Default:</B> read raw = Yes <P> +<B>Example:</B> read raw = No <P> + +<H3><A NAME="read size">read size (G)</A></H3> +The option "read size" affects the overlap of disk reads/writes with network +reads/writes. If the amount of data being transferred in several of the SMB +commands (currently SMBwrite, SMBwriteX and SMBreadbraw) is larger than this +value then the server begins writing the data before it has received the +whole packet from the network, or in the case of SMBreadbraw, it begins +writing to the network before all the data has been read from disk. <P> +This overlapping works best when the speeds of disk and network access are +similar, having very little effect when the speed of one is much greater +than the other. <P> +The default value is 2048, but very little experimentation has been done +yet to determine the optimal value, and it is likely that the best value +will vary greatly between systems anyway. A value over 65536 is pointless +and will cause you to allocate memory unnecessarily. <P> +<B>Default:</B> read size = 2048 <P> +<B>Example:</B> read size = 8192 <P> + +<H3><A NAME="remote announce">remote announce (G)</A></H3> +This option allows you to setup nmbd to periodically announce itself to +arbitrary IP addresses with an arbitrary workgroup name. <P> +This is useful if you want your Samba server to appear in a remote workgroup +for which the normal browse propagation rules don't work. The remote +workgroup can be anywhere that you can send IP packets to. <P> +For example: <P> +remote announce = 192.168.2.255/SERVERS 192.168.4.255/STAFF <P> +the above line would cause nmbd to announce itself to the two given IP +addresses using the given workgroup names. If you leave out the workgroup +name then the one given in the <A HREF="#workgroup">workgroup</A> option is +used instead. <P> +The IP addresses you choose would normally be the broadcast +addresses of the remote networks, but can also be the IP addresses of +known browse masters if your network config is that stable. <P> +This option replaces similar functionality from the nmbd lmhosts file. <P> + +<H3><A NAME="remote browse sync">remote browse sync (G)</A></H3> +This option allows you to setup nmbd to periodically request +synchronisation of browse lists with the master browser of a samba server +that is on a remote segment. This option will allow you to gain browse +lists for multiple workgroups across routed networks. This is done in a +manner that does not work with any non-samba servers. <P> +This is useful if you want your Samba server and all local clients to appear +in a remote workgroup for which the normal browse propagation rules don't +work. The remote workgroup can be anywhere that you can send IP packets to.<P> +For example: <P> +remote browse sync = 192.168.2.255 192.168.4.255 <P> +the above line would cause nmbd to request the master browser on the +specified subnets or addresses to synchronise their browse lists with the +local server. <P> +The IP addresses you choose would normally be the broadcast addresses +of the remote networks, but can also be the IP addresses of known browse +masters if your network config is that stable. If a machine IP address +is given Samba makes NO attempt to validate that the remote machine is +available, is listening, nor that it is in fact the browse master on it's +segment. <P> + +<H3><A NAME="revalidate">revalidate (S)</A></H3> +This options controls whether Samba will allow a previously validated +username/password pair to be used to attach to a share. Thus if you connect +to \\server\share1 then to \\server\share2 it won't automatically allow the +client to request connection to the second share as the same username as the +first without a password. <P> +If "revalidate" is Yes then the client will be denied automatic access as +the same username. <P> +<B>Default:</B> revalidate = No <P> +<B>Example:</B> revalidate = Yes <P> + +<H3><A NAME="root directory">root directory (G)</A></H3> +Synonyms for this parameter are 'root dir' and 'root'. <P> +The server will chroot() to this directory on startup. This is not strictly +necessary for secure operation. Even without it the server will deny access +to files not in one of the service entries. It may also check for, and deny +access to, soft links to other parts of the filesystem, or attempts to use +.. in file names to access other directories (depending on the setting of +the <A HREF="#wide links">wide links</A> parameter). <P> +Adding a "root dir" entry other than "/" adds an extra level +of security, but at a price. It absolutely ensures that no access is given +to files not in the sub-tree specified in the "root dir" option, *including* +some files needed for complete operation of the server. To maintain full +operability of the server you will need to mirror some system files into +the "root dir" tree. In particular you will need to mirror /etc/passwd +(or a subset of it), and any binaries or configuration files needed for +printing (if required). The set of files that must be mirrored is operating +system dependent. <P> +<B>Default:</B> root directory = / <P> +<B>Example:</B> root directory = /homes/smb <P> + +<H3><A NAME="root postexec">root postexec (S)</A></H3> +This is the same as <A HREF="#postexec">postexec</A> except that +the command is run as root. This is useful for unmounting filesystems (such +as CDROMS) after a connection is closed. <P> + +<H3><A NAME="root preexec">root preexec (S)</A></H3> +This is the same as <A HREF="#exec">exec</A> except that the command is run +as root. This is useful for mounting filesystems (such as CDROMS) before a +connection is finalised. <P> + +<H3><A NAME="security">security (G)</A></H3> +This option affects how clients respond to Samba. <P> +The option sets the "security mode bit" in replies to protocol negotiations to turn share level security on or off. Clients decide based on this bit -whether (and how) to transfer user and password information to the server.<p> - -The default is "security=SHARE", mainly because that was the only -option at one stage.<p> - -The alternatives are "security = user" or "security = server". <p> - -If your PCs use usernames that are the same as their usernames on the -UNIX machine then you will want to use "security = user". If you -mostly use usernames that don't exist on the UNIX box then use -"security = share".<p> - -There is a bug in WfWg that may affect your decision. When in user -level security a WfWg client will totally ignore the password you type -in the "connect drive" dialog box. This makes it very difficult (if -not impossible) to connect to a Samba service as anyone except the -user that you are logged into WfWg as.<p> - -If you use "security = server" then Samba will try to validate the -username/password by passing it to another SMB server, such as an NT -box. If this fails it will revert to "security = USER".<p> - -See the "password server" option for more details.<p> - -.B Default: - security = SHARE<p> - -.B Example: - security = USER -<a name="server string"> -<H3>server string (G)</H3> -This controls what string will show up in the printer comment box in -print manager and next to the IPC connection in "net view". It can be -any string that you wish to show to your users.<p> - -It also sets what will appear in browse lists next to the machine name.<p> - -A %v will be replaced with the Samba version number.<p> - -A %h will be replaced with the hostname.<p> - -.B Default: - server string = Samba %v<p> - -.B Example: - server string = University of GNUs Samba Server<p> - -<a name="set directory"> -<H3>set directory (S)</H3> -If 'set directory = no', then users of the service may not use the setdir -command to change directory.<p> - -The setdir command is only implemented in the Digital Pathworks client. See the -Pathworks documentation for details.<p> - -.B Default: - set directory = no<p> - -.B Example: - set directory = yes<p> - -<a name="shared file entries"> -<H3>shared file entries (G)</H3> -This parameter has been removed (as of Samba 1.9.18 and above). The new -System V shared memory code prohibits the user from allocating the -share hash bucket size directly.<p> - -<a name="shared mem size"> -<H3>shared mem size (G)</H3> -This parameter is only useful when Samba has been compiled with FAST_SHARE_MODES. -It specifies the size of the shared memory (in bytes) to use between smbd -processes. You should never change this parameter unless you have studied -the source and know what you are doing. This parameter defaults to 1024 -multiplied by the setting of the maximum number of open files in the -file local.h in the Samba source code. MAX_OPEN_FILES is normally set -to 100, so this parameter defaults to 102400 bytes.<p> - -.B Default - shared mem size = 102400<p> - -<a name="smb passwd file"> -<H3>smb passwd file (G)</H3> -This option sets the path to the encrypted smbpasswd file. This is a *VERY -DANGEROUS OPTION* if the smb.conf is user writable. By default the path -to the smbpasswd file is compiled into Samba.<p> - -<a name="smbrun"> -<H3>smbrun (G)</H3> -This sets the full path to the smbrun binary. This defaults to the -value in the Makefile.<p> - -You must get this path right for many services to work correctly.<p> - -.B Default: -taken from Makefile<p> - -.B Example: - smbrun = /usr/local/samba/bin/smbrun<p> - -<a name="share modes"> -<H3>share modes (S)</H3><p> - -This enables or disables the honouring of the "share modes" during a -file open. These modes are used by clients to gain exclusive read or -write access to a file. <p> - -These open modes are not directly supported by UNIX, so they are -simulated using lock files in the "lock directory". The "lock -directory" specified in smb.conf must be readable by all users.<p> - -The share modes that are enabled by this option are DENY_DOS, -DENY_ALL, DENY_READ, DENY_WRITE, DENY_NONE and DENY_FCB.<p> - -Enabling this option gives full share compatibility but may cost a bit -of processing time on the UNIX server. They are enabled by default.<p> - -.B Default: - share modes = yes<p> - -.B Example: - share modes = no<p> - -<a name="short preserve case"> -<H3>short preserve case (S)</H3><p> - -This controls if new short filenames are created with the case that -the client passes, or if they are forced to be the "default" case.<p> - -.B Default: - short preserve case = no<p> - -See the section on "NAME MANGLING" for a fuller discussion.<p> - -<a name="socket address"> -<H3>socket address (G)</H3><p> - -This option allows you to control what address Samba will listen for -connections on. This is used to support multiple virtual interfaces on -the one server, each with a different configuration.<p> - -By default samba will accept connections on any address.<p> - -.B Example: - socket address = 192.168.2.20<p> - -<a name="socket options"> -<H3>socket options (G)</H3> -This option (which can also be invoked with the -O command line -option) allows you to set socket options to be used when talking with -the client.<p> - -Socket options are controls on the networking layer of the operating -systems which allow the connection to be tuned.<p> - -This option will typically be used to tune your Samba server for -optimal performance for your local network. There is no way that Samba -can know what the optimal parameters are for your net, so you must -experiment and choose them yourself. I strongly suggest you read the -appropriate documentation for your operating system first (perhaps -"man setsockopt" will help).<p> - -You may find that on some systems Samba will say "Unknown socket -option" when you supply an option. This means you either mis-typed it -or you need to add an include file to includes.h for your OS. If the -latter is the case please send the patch to me -(samba-bugs@samba.anu.edu.au).<p> - -Any of the supported socket options may be combined in any way you -like, as long as your OS allows it.<p> - -This is the list of socket options currently settable using this -option:<p> - - SO_KEEPALIVE<p> - - SO_REUSEADDR<p> - - SO_BROADCAST<p> - - TCP_NODELAY<p> - - IPTOS_LOWDELAY<p> - - IPTOS_THROUGHPUT<p> - - SO_SNDBUF *<p> - - SO_RCVBUF *<p> - - SO_SNDLOWAT *<p> - - SO_RCVLOWAT *<p> - -Those marked with a * take an integer argument. The others can -optionally take a 1 or 0 argument to enable or disable the option, by -default they will be enabled if you don't specify 1 or 0.<p> - -To specify an argument use the syntax SOME_OPTION=VALUE for example -SO_SNDBUF=8192. Note that you must not have any spaces before or after -the = sign.<p> - -If you are on a local network then a sensible option might be<p> - -socket options = IPTOS_LOWDELAY<p> - -If you have an almost unloaded local network and you don't mind a lot -of extra CPU usage in the server then you could try<p> - -socket options = IPTOS_LOWDELAY TCP_NODELAY<p> - -If you are on a wide area network then perhaps try setting -IPTOS_THROUGHPUT. <p> - -Note that several of the options may cause your Samba server to fail -completely. Use these options with caution!<p> - -.B Default: - no socket options<p> - -.B Example: - socket options = IPTOS_LOWDELAY <p> - -<p> - - -<a name="status"> -<H3>status (G)</H3> -This enables or disables logging of connections to a status file that -.B smbstatus -can read.<p> - -With this disabled -.B smbstatus -won't be able to tell you what -connections are active.<p> - -.B Default: - status = yes<p> - -.B Example: - status = no<p> - -<a name="strict locking"> -<H3>strict locking (S)</H3> -This is a boolean that controls the handling of file locking in the -server. When this is set to yes the server will check every read and -write access for file locks, and deny access if locks exist. This can -be slow on some systems.<p> - -When strict locking is "no" the server does file lock checks only when -the client explicitly asks for them. <p> - -Well behaved clients always ask for lock checks when it is important, -so in the vast majority of cases "strict locking = no" is preferable.<p> - -.B Default: - strict locking = no<p> - -.B Example: - strict locking = yes<p> - -<a name="strip dot"> -<H3>strip dot (G)</H3> -This is a boolean that controls whether to strip trailing dots off -UNIX filenames. This helps with some CDROMs that have filenames ending in a -single dot.<p> - -.B Default: - strip dot = no<p> - -.B Example: - strip dot = yes<p> - -<a name="syslog"> -<H3>syslog (G)</H3> -This parameter maps how Samba debug messages are logged onto the -system syslog logging levels. Samba debug level zero maps onto -syslog LOG_ERR, debug level one maps onto LOG_WARNING, debug -level two maps to LOG_NOTICE, debug level three maps onto LOG_INFO. -The paramter sets the threshold for doing the mapping, all Samba -debug messages above this threashold are mapped to syslog LOG_DEBUG -messages.<p> - -.B Default:<p> - - syslog = 1<p> - -<a name="syslog only"> -<H3>syslog only (G)</H3> -If this parameter is set then Samba debug messages are logged into -the system syslog only, and not to the debug log files.<p> - -.B Default: - syslog only = no<p> - -<a name="sync always"> -<H3>sync always (S)</H3><p> - -This is a boolean parameter that controls whether writes will always -be written to stable storage before the write call returns. If this is -false then the server will be guided by the client's request in each -write call (clients can set a bit indicating that a particular write -should be synchronous). If this is true then every write will be -followed by a fsync() call to ensure the data is written to disk.<p> - -.B Default: - sync always = no<p> - -.B Example: - sync always = yes<p> - -<a name="time offset"> -<H3>time offset (G)</H3> -This parameter is a setting in minutes to add to the normal GMT to -local time conversion. This is useful if you are serving a lot of PCs -that have incorrect daylight saving time handling.<p> - -.B Default: - time offset = 0<p> - -.B Example: - time offset = 60<p> - -<a name="time server"> -<H3>time server (G)</H3> -This parameter determines if nmbd advertises itself as a time server -to Windows clients. The default is False.<p> - -.B Default: - time server = False<p> - -.B Example: - time server = True<p> - -<a name="unix realname"> -<H3>unix realname (G)</H3> -This boolean parameter when set causes samba to supply the real name field -from the unix password file to the client. This is useful for setting up -mail clients and WWW browsers on systems used by more than one person.<p> - -.B Default: - unix realname = no<p> - -.B Example: - unix realname = yes<p> - -<a name="user"> -<H3>user (S)</H3> -See -.B username. -<a name="username"> -<H3>username (S)</H3> -A synonym for this parameter is 'user'.<p> - -Multiple users may be specified in a comma-delimited list, in which case the -supplied password will be tested against each username in turn (left to right).<p> - -The username= line is needed only when the PC is unable to supply its own -username. This is the case for the coreplus protocol or where your -users have different WfWg usernames to UNIX usernames. In both these -cases you may also be better using the \e\eserver\eshare%user syntax -instead. <p> - -The username= line is not a great solution in many cases as it means Samba -will try to validate the supplied password against each of the -usernames in the username= line in turn. This is slow and a bad idea for -lots of users in case of duplicate passwords. You may get timeouts or -security breaches using this parameter unwisely.<p> - -Samba relies on the underlying UNIX security. This parameter does not -restrict who can login, it just offers hints to the Samba server as to -what usernames might correspond to the supplied password. Users can -login as whoever they please and they will be able to do no more -damage than if they started a telnet session. The daemon runs as the -user that they log in as, so they cannot do anything that user cannot -do.<p> - -To restrict a service to a particular set of users you can use the -"valid users=" line.<p> - -If any of the usernames begin with a @ then the name will be looked up -in the groups file and will expand to a list of all users in the group -of that name. Note that searching though a groups file can take quite -some time, and some clients may time out during the search.<p> - -See the section below on username/password validation for more information -on how this parameter determines access to the services.<p> - -.B Default: - The guest account if a guest service, else the name of the service.<p> - -.B Examples: - username = fred - username = fred, mary, jack, jane, @users, @pcgroup<p> - -<a name="username level"> -<H3>username level (G)</H3><p> - -This option helps Samba to try and 'guess' at the real UNIX username, -as many DOS clients send an all-uppercase username. By default Samba -tries all lowercase, followed by the username with the first letter -capitalized, and fails if the username is not found on the UNIX machine.<p> - -If this parameter is set to non-zero the behaviour changes. This -parameter is a number that specifies the number of uppercase combinations -to try whilst trying to determine the UNIX user name. The higher the number -the more combinations will be tried, but the slower the discovery -of usernames will be. Use this parameter when you have strange -usernames on your UNIX machine, such as 'AstrangeUser'.<p> - -.B Default: - username level = 0<p> - -.B Example: - username level = 5<p> - -<a name="username map"> -<H3>username map (G)</H3><p> - -This option allows you to to specify a file containing a mapping of -usernames from the clients to the server. This can be used for several -purposes. The most common is to map usernames that users use on DOS or -Windows machines to those that the UNIX box uses. The other is to map -multiple users to a single username so that they can more easily share -files.<p> - -The map file is parsed line by line. Each line should contain a single -UNIX username on the left then a '=' followed by a list of usernames -on the right. The list of usernames on the right may contain names of -the form @group in which case they will match any UNIX username in -that group. The special client name '*' is a wildcard and matches any -name.<p> - -The file is processed on each line by taking the supplied username and -comparing it with each username on the right hand side of the '=' -signs. If the supplied name matches any of the names on the right -hand side then it is replaced with the name on the left. Processing -then continues with the next line.<p> - -If any line begins with a '#' or a ';' then it is ignored<p> - -If any line begins with an ! then the processing will stop after that -line if a mapping was done by the line. Otherwise mapping continues -with every line being processed. Using ! is most useful when you have -a wildcard mapping line later in the file.<p> - -For example to map from the name "admin" or "administrator" to the UNIX -name "root" you would use<p> - - root = admin administrator<p> - -Or to map anyone in the UNIX group "system" to the UNIX name "sys" you -would use<p> - - sys = @system<p> - -You can have as many mappings as you like in a username map file.<p> - -You can map Windows usernames that have spaces in them by using double -quotes around the name. For example:<p> - - tridge = "Andrew Tridgell"<p> - -would map the windows username "Andrew Tridgell" to the unix username -tridge.<p> - -The following example would map mary and fred to the unix user sys, -and map the rest to guest. Note the use of the ! to tell Samba to stop -processing if it gets a match on that line.<p> - - !sys = mary fred - guest = *<p> - - -Note that the remapping is applied to all occurrences of -usernames. Thus if you connect to "\e\eserver\efred" and "fred" is -remapped to "mary" then you will actually be connecting to -"\e\eserver\emary" and will need to supply a password suitable for -"mary" not "fred". The only exception to this is the username passed -to the "password server" (if you have one). The password server will -receive whatever username the client supplies without modification.<p> - -Also note that no reverse mapping is done. The main effect this has is -with printing. Users who have been mapped may have trouble deleting -print jobs as PrintManager under WfWg will think they don't own the -print job.<p> - -.B Default - no username map<p> - -.B Example - username map = /usr/local/samba/lib/users.map<p> - -<a name="valid chars"> -<H3>valid chars (S)</H3><p> - -The option allows you to specify additional characters that should be -considered valid by the server in filenames. This is particularly -useful for national character sets, such as adding u-umlaut or a-ring.<p> - -The option takes a list of characters in either integer or character -form with spaces between them. If you give two characters with a colon -between them then it will be taken as an lowercase:uppercase pair.<p> - -If you have an editor capable of entering the characters into the -config file then it is probably easiest to use this method. Otherwise -you can specify the characters in octal, decimal or hexadecimal form -using the usual C notation.<p> - -For example to add the single character 'Z' to the charset (which is a -pointless thing to do as it's already there) you could do one of the -following<p> - -valid chars = Z -valid chars = z:Z -valid chars = 0132:0172<p> - -The last two examples above actually add two characters, and alter -the uppercase and lowercase mappings appropriately.<p> - -Note that you MUST specify this parameter after the "client code page" -parameter if you have both set. If "client code page" is set after -the "valid chars" parameter the "valid chars" settings will be -overwritten.<p> - -See also the "client code page" parameter.<p> - -.B Default -.br - Samba defaults to using a reasonable set of valid characters -.br - for english systems<p> - -.B Example - valid chars = 0345:0305 0366:0326 0344:0304<p> - -The above example allows filenames to have the swedish characters in -them. <p> - -NOTE: It is actually quite difficult to correctly produce a "valid -chars" line for a particular system. To automate the process -tino@augsburg.net has written a package called "validchars" which will -automatically produce a complete "valid chars" line for a given client -system. Look in the examples subdirectory for this package.<p> - -<a name="valid users"> -<H3>valid users (S)</H3> -This is a list of users that should be allowed to login to this -service. A name starting with @ is interpreted as a UNIX group.<p> - -If this is empty (the default) then any user can login. If a username -is in both this list and the "invalid users" list then access is -denied for that user.<p> - -The current servicename is substituted for %S. This is useful in the -[homes] section.<p> - -See also "invalid users"<p> - -.B Default - No valid users list. (anyone can login)<p> - -.B Example - valid users = greg, @pcusers<p> - - -<a name="veto file"> -<H3>veto files(S)</H3> -This is a list of files and directories that are neither visible nor -accessible. Each entry in the list must be separated by a "/", which -allows spaces to be included in the entry. '*' and '?' can be used to -specify multiple files or directories as in DOS wildcards.<p> - +whether (and how) to transfer user and password information to the server.<P> +The default is "security=SHARE", mainly because that was the only option at +one stage. <P> +The alternatives are "security = user" or "security = server". <P> +If your PCs use usernames that are the same as their usernames on the +UNIX machine then you will want to use "security = user". If you mostly +use usernames that don't exist on the UNIX box then use "security = share".<P> +There is a bug in WfWg that may affect your decision. When in user level +security a WfWg client will totally ignore the password you type in the +"connect drive" dialog box. This makes it very difficult (if not impossible) +to connect to a Samba service as anyone except the user that you are logged +into WfWg as. <P> +If you use "security = server" then Samba will try to validate +the username/password by passing it to another SMB server, such as an +NT box. If this fails it will revert to "security = USER". <P> +See the <A HREF="#password server">password server</A> option for more +details. <P> +<B>Default:</B> security = SHARE <P> +<B>Example:</B> security = USER <P> + +<H3><A NAME="server string">server string (G)</A></H3> +This controls what string will show up in the printer comment box in print +manager and next to the IPC connection in "net view". It can be any string +that you wish to show to your users. <P> +It also sets what will appear in browse lists next to the machine name. <P> +A %v will be replaced with the Samba version number. <P> +A %h will be replaced with the hostname. <P> +<B>Default:</B> server string = Samba %v <P> +<B>Example:</B> server string = University of GNUs Samba Server <P> + +<H3><A NAME="set directory">set directory (S)</A></H3> +If 'set directory = No', then users of the service may not use the setdir +command to change directory. <P> +The setdir command is only implemented in the Digital Pathworks +client. See the Pathworks documentation for details. <P> +<B>Default:</B> set directory = No <P> +<B>Example:</B> set directory = Yes <P> + +<H3><A NAME="shared mem size">shared mem size (G)</A></H3> +This parameter is only useful when Samba has been compiled with +FAST_SHARE_MODES. It specifies the size of the shared +memory (in bytes) to use between smbd processes. You should never change +this parameter unless you have studied the source and know what you are +doing. This parameter defaults to 1024 multiplied by the setting of the +maximum number of open files in the file local.h in the Samba source code. +MAX_OPEN_FILES is normally set to 100, so this parameter defaults to 102400 +bytes. <P> +<B>Default</B> shared mem size = 102400 <P> + +<H3><A NAME="smb passwd file">smb passwd file (G)</A></H3> +This option sets the path to the encrypted smbpasswd file. This is a +*VERY DANGEROUS OPTION* if the smb.conf is user writable. By default the +path to the smbpasswd file is compiled into Samba. <P> + +<H3><A NAME="smbrun">smbrun (G)</A></H3> +This sets the full path to the smbrun binary. This defaults to the value in +the Makefile. <P> +You must get this path right for many services to work correctly. <P> +<B>Default:</B> taken from Makefile <P> +<B>Example:</B> smbrun = /usr/local/samba/bin/smbrun <P> + +<H3><A NAME="share modes">share modes (S)</A></H3> +This enables or disables the honouring of the "share modes" during a file +open. These modes are used by clients to gain exclusive read or write access +to a file. <P> +These open modes are not directly supported by UNIX, so they are simulated +using lock files in the <A HREF="#lock dir">lock dir</A>. The "lock dir" +specified in smb.conf must be readable by all users. <P> +The share modes that are enabled by this option are DENY_DOS, DENY_ALL, +DENY_READ, DENY_WRITE, DENY_NONE and DENY_FCB. <P> +Enabling this option gives full share compatibility but may cost a bit of +processing time on the UNIX server. They are enabled by default. <P> +<B>Default:</B> share modes = Yes <P> +<B>Example:</B> share modes = No <P> + +<H3><A NAME="short preserve case">short preserve case (S)</A></H3> +This controls if new short filenames are created with the case that the client +passes, or if they are forced to be the "default" case. <P> +<B>Default:</B> short preserve case = No <P> +See the section on <A HREF="#NAME MANGLING">NAME MANGLING</A> for a fuller +discussion. <P> + +<H3><A NAME="socket address">socket address (G)</A></H3> +This option allows you to control what address Samba will listen for +connections on. This is used to support multiple virtual interfaces on the +one server, each with a different configuration. <P> +By default samba will accept connections on any address. <P> +<B>Example:</B> socket address = 192.168.2.20 <P> + +<H3><A NAME="socket options">socket options (G)</A></H3> +This option (which can also be invoked with the -O command line option) allows +you to set socket options to be used when talking with the client. <P> +Socket options are controls on the networking layer of the operating systems +which allow the connection to be tuned. <P> +This option will typically be used to tune your Samba server for optimal +performance for your local network. There is no way that Samba can know what +the optimal parameters are for your net, so you must experiment and choose +them yourself. I strongly suggest you read the appropriate documentation for +your operating system first (perhaps "man setsockopt" will help). <P> +You may find that on some systems Samba will say "Unknown socket option" when +you supply an option. This means you either mis-typed it or you need to add +an include file to includes.h for your OS. If the latter is the case please +send the patch to me (samba-bugs@samba.anu.edu.au). <P> +Any of the supported socket options may be combined in any way you like, as +long as your OS allows it. <P> +This is the list of socket options currently settable using this option: <P> +SO_KEEPALIVE <BR> +SO_REUSEADDR <BR> +SO_BROADCAST <BR> +TCP_NODELAY <BR> +IPTOS_LOWDELAY <BR> +IPTOS_THROUGHPUT <BR> +SO_SNDBUF * <BR> +SO_RCVBUF * <BR> +SO_SNDLOWAT * <BR> +SO_RCVLOWAT * <P> +Those marked with a * take an integer argument. The others can optionally take +a 1 or 0 argument to enable or disable the option, by default they will +be enabled if you don't specify 1 or 0. <P> +To specify an argument use the syntax SOME_OPTION=VALUE for example +SO_SNDBUF=8192. Note that you must not have any spaces before or after the = +sign. <P> +If you are on a local network then a sensible option might be <P> +socket options = IPTOS_LOWDELAY <P> +If you have an almost unloaded local network and you don't mind a lot +of extra CPU usage in the server then you could try <P> +socket options = IPTOS_LOWDELAY TCP_NODELAY <P> +If you are on a wide area network then perhaps try setting IPTOS_THROUGHPUT. <P> +Note that several of the options may cause your Samba server to fail +completely. Use these options with caution! <P> +<B>Default:</B> no socket options <P> +<B>Example:</B> socket options = IPTOS_LOWDELAY <P> + +<H3><A NAME="status">status (G)</A></H3> +This enables or disables logging of connections to a status +file that <B>smbstatus</B> can read. <P> +With this disabled <B>smbstatus</B> won't be able to tell you what connections +are active. <P> +<B>Default:</B> status = Yes <P> +<B>Example:</B> status = No <P> + +<H3><A NAME="strict locking">strict locking (S)</A></H3> +This is a boolean that controls the handling of file locking in the server. +When this is set to yes the server will check every read and write access +for file locks, and deny access if locks exist. This can be slow on some +systems. <P> +When strict locking is "no" the server does file lock checks only when the +client explicitly asks for them. <P> +Well behaved clients always ask for lock checks when it is important, +so in the vast majority of cases "strict locking = no" is preferable. <P> +<B>Default:</B> strict locking = No <P> +<B>Example:</B> strict locking = Yes <P> + +<H3><A NAME="strip dot">strip dot (G)</A></H3> +This is a boolean that controls whether to strip trailing dots off +UNIX filenames. This helps with some CDROMs that have filenames ending +in a single dot. <P> +<B>Default:</B> strip dot = No <P> +<B>Example:</B> strip dot = Yes <P> + +<H3><A NAME="syslog">syslog (G)</A></H3> +This parameter maps how Samba debug messages are logged onto +the system syslog logging levels. Samba debug level zero maps onto syslog +LOG_ERR, debug level one maps onto LOG_WARNING, debug level two maps to +LOG_NOTICE, debug level three maps onto LOG_INFO. The paramter sets the +threshold for doing the mapping, all Samba debug messages above this threashold +are mapped to syslog LOG_DEBUG messages. <P> +<B>Default:</B> syslog = 1 <P> + +<H3><A NAME="syslog only">syslog only (G)</A></H3> +If this parameter is set then Samba debug messages are logged +into the system syslog only, and not to the debug log files. <P> +<B>Default:</B> syslog only = no <P> + +<H3><A NAME="sync always">sync always (S)</A></H3> +This is a boolean parameter that controls whether writes will always be +written to stable storage before the write call returns. If this is No then +the server will be guided by the client's request in each write call (clients +can set a bit indicating that a particular write should be synchronous). If +this is Yes then every write will be followed by a fsync() call to ensure the +data is written to disk. <P> +<B>Default:</B> sync always = No <P> +<B>Example:</B> sync always = Yes <P> + +<H3><A NAME="time offset">time offset (G)</A></H3> +This parameter is a setting in minutes to add to the normal GMT to local time +conversion. This is useful if you are serving a lot of PCs that have incorrect +daylight saving time handling. <P> +<B>Default:</B> time offset = 0 <P> +<B>Example:</B> time offset = 60 <P> + +<H3><A NAME="time server">time server (G)</A></H3> +This parameter determines if nmbd advertises itself as a time server to +Windows clients. <P> +<B>Default:</B> time server = No <P> +<B>Example:</B> time server = Yes <P> + +<H3><A NAME="unix realname">unix realname (G)</A></H3> +This boolean parameter when set causes samba to supply the real name field +from the unix password file to the client. This is useful for setting up mail +clients and WWW browsers on systems used by more than one person. <P> +<B>Default:</B> unix realname = No <P> +<B>Example:</B> unix realname = Yes <P> + +<H3><A NAME="update encrypted">update encrypted (S)</A></H3> +<B>Default:</B> update encrypted = No <P> + +<H3><A NAME="use rhosts">use rhosts (S)</A></H3> +<B>Default:</B> use rhosts = No <P> + +<H3><A NAME="username">username (S)</A></H3> +A synonym for this parameter is 'user'. <P> +Multiple users may be specified in a comma-delimited list, in which case the +supplied password will be tested against each username in turn (left to +right). <P> +The username= line is needed only when the PC is unable to supply its own +username. This is the case for the coreplus protocol or where your users have +different WfWg usernames to UNIX usernames. In both these cases you may also +be better using the \\server\share%user syntax instead. <P> +The username= line is not a great solution in many cases as it means Samba +will try to validate the supplied password against each of the usernames in +the username= line in turn. This is slow and a bad idea for lots of users in +case of duplicate passwords. You may get timeouts or security breaches using +this parameter unwisely. <P> +Samba relies on the underlying UNIX security. This parameter does not restrict +who can login, it just offers hints to the Samba server as to what usernames +might correspond to the supplied password. Users can login as whoever they +please and they will be able to do no more damage than if they started a +telnet session. The daemon runs as the user that they log in as, so they +cannot do anything that user cannot do. <P> +To restrict a service to a particular set of users you can use the +<A HREF="#valid users">valid users</A> line. <P> +If any of the usernames begin with a @ then the name will be looked +up in the groups file and will expand to a list of all users in the group +of that name. Note that searching though a groups file can take quite some +time, and some clients may time out during the search. <P> +See the section below on +<A HREF="#USERNAME/PASSWORD VALIDATION">USERNAME/PASSWORD VALIDATION</A> +for more information on how this parameter determines access to the services.<P> +<B>Default:</B> The guest account if a guest service, else the name of the service. <P> +<B>Examples:</B>username = fredusername = fred, mary, jack, jane, @users, @pcgroup <P> + +<H3><A NAME="username level">username level (G)</A></H3> +This option helps Samba to try and 'guess' at the real UNIX username, +as many DOS clients send an all-uppercase username. By default Samba tries +all lowercase, followed by the username with the first letter capitalized, +and fails if the username is not found on the UNIX machine. <P> +If this parameter is set to non-zero the behaviour changes. This parameter +is a number that specifies the number of uppercase combinations to try whilst +trying to determine the UNIX user name. The higher the number the more +combinations will be tried, but the slower the discovery of usernames will be. +Use this parameter when you have strange usernames on your UNIX machine, +such as 'AstrangeUser'. <P> +<B>Default:</B> username level = 0 <P> +<B>Example:</B> username level = 5 <P> + +<H3><A NAME="username map">username map (G)</A></H3> +This option allows you to to specify a file containing +a mapping of usernames from the clients to the server. This can be used +for several purposes. The most common is to map usernames that users use +on DOS or Windows machines to those that the UNIX box uses. The other is +to map multiple users to a single username so that they can more easily +share files. <P> +The map file is parsed line by line. Each line should contain +a single UNIX username on the left then a '=' followed by a list of usernames +on the right. The list of usernames on the right may contain names of the +form @group in which case they will match any UNIX username in that group. +The special client name '*' is a wildcard and matches any name. <P> +The file is processed on each line by taking the supplied username and +comparing it with each username on the right hand side of the '=' signs. If +the supplied name matches any of the names on the right hand side then it is +replaced with the name on the left. Processing then continues with the next +line. <P> +If any line begins with a '#' or a ';' then it is ignored <P> +If any line begins with an ! then the processing will stop after that line if +a mapping was done by the line. Otherwise mapping continues with every line +being processed. Using ! is most useful when you have a wildcard mapping line +later in the file. <P> +For example to map from the name "admin" or "administrator" to the UNIX name +"root" you would use <P> +root = admin administrator <P> +Or to map anyone in the UNIX group "system" to the UNIX name "sys" you would +use <P> +sys = @system <P> +You can have as many mappings as you like in a username map file. <P> +You can map Windows usernames that have spaces in them by using +double quotes around the name. For example: <P> +tridge = "Andrew Tridgell" <P> +would map the windows username "Andrew Tridgell" to the unix username +tridge. <P> +The following example would map mary and fred to the unix user +sys, and map the rest to guest. Note the use of the ! to tell Samba to +stop processing if it gets a match on that line. <P> +!sys = mary fred guest = * <P> +Note that the remapping is applied to all occurrences of usernames. +Thus if you connect to "\\server\fred" and "fred" is remapped to "mary" then +you will actually be connecting to "\\server\mary" and will need to supply +a password suitable for "mary" not "fred". The only exception to this is +the username passed to the <A HREF="#password server">password server</A> +(if you have one). The password server will receive whatever username the +client supplies without modification. <P> +Also note that no reverse mapping is done. The main effect this has is +with printing. Users who have been mapped may have trouble deleting print +jobs as PrintManager under WfWg will think they don't own the print job. <P> +<B>Default</B> no username map <P> +<B>Example</B> username map = /usr/local/samba/lib/users.map <P> + +<H3><A NAME="valid chars">valid chars (S)</A></H3> +The option allows you to specify additional characters that should be +considered valid by the server in filenames. This is particularly +useful for national character sets, such as adding u-umlaut or a-ring. <P> +The option takes a list of characters in either integer or character form +with spaces between them. If you give two characters with a colon between +them then it will be taken as an lowercase:uppercase pair. <P> +If you have an editor capable of entering the characters into the config file +then it is probably easiest to use this method. Otherwise you can specify the +characters in octal, decimal or hexadecimal form using the usual C notation.<P> +For example to add the single character 'Z' to the charset (which is a +pointless thing to do as it's already there) you could do one of the following +<P> +valid chars = Z <BR> +valid chars = z:Z <BR> +valid chars = 0132:0172 <P> +The last two examples above actually add two characters, and alter the +uppercase and lowercase mappings appropriately. <P> +Note that you MUST specify this parameter after the +<A HREF="#client code page">client code page</A> parameter if you have both +set. If "client code page" is set after the "valid chars" parameter the +"valid chars" settings will be overwritten. <P> +See also the <A HREF="#client code page">client code page</A> parameter. <P> +<B>Default:</B> Samba defaults to using a reasonable set of valid characters +for english systems <P> +<B>Example:</B> valid chars = 0345:0305 0366:0326 0344:0304 <P> +The above example allows filenames to have the swedish characters in them. <P> +NOTE: It is actually quite difficult to correctly produce a "valid chars" line +for a particular system. To automate the process tino@augsburg.net +has written a package called "validchars" which will automatically produce +a complete "valid chars" line for a given client system. Look in the examples +subdirectory for this package. <P> + +<H3><A NAME="valid users">valid users (S)</A></H3> +This is a list of users that should be allowed to login to this service. A +name starting with @ is interpreted as a UNIX group. <P> +If this is empty (the default) then any user can login. If a username is in +both this list and the <A HREF="#invalid users">invalid users</A> list then +access is denied for that user. <P> +The current servicename is substituted for %S. This is useful in the [homes] +section. <P> +See also <A HREF="#invalid users">invalid users</A> <P> +<B>Default</B> No valid users list. (anyone can login) <P> +<B>Example</B> valid users = greg, @pcusers <P> + +<H3><A NAME="veto files">veto files (S)</A></H3> +This is a list of files and directories that are neither visible nor +accessible. Each entry in the list must be separated by a "/", which allows +spaces to be included in the entry. '*' and '?' can be used to specify +multiple files or directories as in DOS wildcards. <P> Each entry must be a unix path, not a DOS path and must not include the -unix directory separator "/".<p> - -Note that the case sensitivity option is applicable in vetoing files.<p> - -One feature of the veto files parameter that it is important to be -aware of, is that if a directory contains nothing but files that -match the veto files parameter (which means that Windows/DOS clients -cannot ever see them) is deleted, the veto files within that directory -*are automatically deleted* along with it, if the user has UNIX permissions -to do so. - -Setting this parameter will affect the performance of Samba, as -it will be forced to check all files and directories for a match -as they are scanned.<p> - -See also "hide files" and "case sensitive"<p> - -.B Default - No files or directories are vetoed.<p> - -.B Examples - Example 1. - Veto any files containing the word Security, - any ending in .tmp, and any directory containing the - word root.<p> - - veto files = /*Security*/*.tmp/*root*/<p> - - Example 2. - Veto the Apple specific files that a NetAtalk server - creates.<p> - - veto files = /.AppleDouble/.bin/.AppleDesktop/Network Trash Folder/<p> - -<a name="veto oplock files"> -<H3>veto oplock files (S)</H3> -This parameter is only valid when the 'oplocks' parameter is turned on -for a share. It allows the Samba administrator to selectively turn off -the granting of oplocks on selected files that match a wildcarded list, -similar to the wildcarded list used in the 'veto files' parameter.<p> - -.B Default - No files are vetoed for oplock grants.<p> - -.B Examples -You might want to do this on files that you know will be heavily -contended for by clients. A good example of this is in the NetBench -SMB benchmark program, which causes heavy client contention for files -ending in .SEM. To cause Samba not to grant oplocks on these files -you would use the line (either in the [global] section or in the section -for the particular NetBench share :<p> - - veto oplock files = /*.SEM/<p> - -<a name="volume"> -<H3>volume (S)</H3> -This allows you to override the volume label returned for a -share. Useful for CDROMs with installation programs that insist on a -particular volume label.<p> - -The default is the name of the share<p> - -<a name="wide links"> -<H3>wide links (S)</H3> -This parameter controls whether or not links in the UNIX file system may be -followed by the server. Links that point to areas within the directory tree -exported by the server are always allowed; this parameter controls access -only to areas that are outside the directory tree being exported.<p> - -.B Default: - wide links = yes<p> - -.B Example: - wide links = no<p> - -<a name="wins proxy"> -<H3>wins proxy (G)</H3><p> - -This is a boolean that controls if nmbd will respond to broadcast name -queries on behalf of other hosts. You may need to set this to no for -some older clients.<p> - -.B Default: - wins proxy = no -<a name="wins server"> -<H3>wins server (G)</H3><p> +unix directory separator "/". <P> +Note that the case sensitivity option is applicable in vetoing files. <P> +One feature of the veto files parameter that it is important to be aware of, +is that if a directory contains nothing but files that match the veto files +parameter (which means that Windows/DOS clients cannot ever see them) is +deleted, the veto files within that directory *are automatically deleted* +along with it, if the user has UNIX permissions to do so.Setting this +parameter will affect the performance of Samba, as it will be forced to check +all files and directories for a match as they are scanned. <P> +See also <A HREF="#hide files">hide files</A> and +<A HREF="#case sensitive">case sensitive</A> <P> +<B>Default</B> No files or directories are vetoed. <P> +<B>Examples</B> Example 1. Veto any files containing the word Security, any +ending in .tmp, and any directory containing the word root. <P> +veto files = /*Security*/*.tmp/*root*/ <P> +Example 2. Veto the Apple specific files that a NetAtalk server creates. <P> +veto files = /.AppleDouble/.bin/.AppleDesktop/Network Trash Folder/ <P> + +<H3><A NAME="veto oplock files">veto oplock files (S)</A></H3> +This parameter is only valid when the <A HREF="#oplocks">oplocks</A> +parameter is turned on for a share. It allows the Samba administrator to +selectively turn off the granting of oplocks on selected files that match +a wildcarded list, similar to the wildcarded list used in the +<A HREF="#veto files">veto files</A> parameter. <P> +<B>Default</B> No files are vetoed for oplock grants. <P> +<B>Examples</B> You might want to do this on files that you know will be +heavily contended for by clients. A good example of this is in the NetBench +SMB benchmark program, which causes heavy client contention for files ending +in .SEM. To cause Samba not to grant oplocks on these files you would use the +line (either in the [global] section or in the section for the particular +NetBench share : <P> +veto oplock files = /*.SEM/ <P> + +<H3><A NAME="volume">volume (S)</A></H3> +This allows you to override the volume label returned for a share. Useful for +CDROMs with installation programs that insist on a particular volume label.<P> +The default is the name of the share <P> + +<H3><A NAME="wide links">wide links (S)</A></H3> +This parameter controls whether or not links in the UNIX file system may be +followed by the server. Links that point to areas within the directory tree +exported by the server are always allowed; this parameter controls access only +to areas that are outside the directory tree being exported. <P> +<B>Default:</B> wide links = Yes <P> +<B>Example:</B> wide links = No <P> + +<H3><A NAME="wins proxy">wins proxy (G)</A></H3> +This is a boolean that controls if nmbd will respond to broadcast name queries +on behalf of other hosts. You may need to set this to no for some older +clients. <P> +<B>Default:</B> wins proxy = No <P> +<H3><A NAME="wins server">wins server (G)</A></H3> This specifies the DNS name (or IP address) of the WINS server that Samba -should register with. If you have a WINS server on your network then you -should set this to the WINS servers name.<p> - -You should point this at your WINS server if you have a multi-subnetted -network. -.B Default: - wins server = <p> - -<a name="wins support"> -<H3>wins support (G)</H3><p> - +should register with. If you have a WINS server on your network then you +should set this to the WINS servers name. <P> +You should point this at your WINS server if you have a multi-subnetted +network. <P> +<B>Default:</B> wins server = <P> + +<H3><A NAME="wins support">wins support (G)</A></H3> This boolean controls if the nmbd process in Samba will act as a WINS server. -You should not set this to true unless you have a multi-subnetted network and -you wish a particular nmbd to be your WINS server. Note that you -should *NEVER* set this to true on more than one machine in your -network.<p> - -.B Default: - wins support = no<p> - -<a name="workgroup"> -<H3>workgroup (G)</H3><p> - -This controls what workgroup your server will appear to be in when -queried by clients. <p> - -.B Default: - set in the Makefile<p> - -.B Example: - workgroup = MYGROUP<p> - -<a name="writable"> -<H3>writable (S)</H3> -A synonym for this parameter is 'write ok'. An inverted synonym is 'read only'.<p> - -If this parameter is 'no', then users of a service may not create or modify -files in the service's directory.<p> - -Note that a printable service ('printable = yes') will ALWAYS allow -writing to the directory (user privileges permitting), but only via -spooling operations.<p> - -.B Default: - writable = no<p> - -.B Examples: - read only = no - writable = yes - write ok = yes -<a name="write list"> -<H3>write list (S)</H3> -This is a list of users that are given read-write access to a -service. If the connecting user is in this list then they will be -given write access, no matter what the "read only" option is set -to. The list can include group names using the @group syntax.<p> - -Note that if a user is in both the read list and the write list then -they will be given write access.<p> - -See also the "read list" option<p> - -.B Default: - write list =<p> - -.B Example: - write list = admin, root, @staff<p> - -<a name="write ok"> -<H3>write ok (S)</H3> -See -.B writable -and -.B read only.<p> - -<a name="write raw"> -<H3>write raw (G)</H3> -This parameter controls whether or not the server will support raw writes when -transferring data from clients.<p> - -.B Default: - write raw = yes<p> - -.B Example: - write raw = no<p> - +You should not set this to Yes unless you have a multi-subnetted network and +you wish a particular nmbd to be your WINS server. Note that you should +*NEVER* set this to Yes on more than one machine in your network. <P> +<B>Default:</B> wins support = No <P> + +<H3><A NAME="workgroup">workgroup (G)</A></H3> +This controls what workgroup your server will appear to be in when queried by +clients. <P> +<B>Default:</B> set in the Makefile <P> +<B>Example:</B> workgroup = MYGROUP <P> + +<H3><A NAME="write list">write list (S)</A></H3> +This is a list of users that are given read-write access to a service. If +the connecting user is in this list then they will be given write access, +no matter what the <A HREF="#writable">writable</A> option is set to. +The list can include group names using the @group syntax. <P> +Note that if a user is in both the read list and the write list then they +will be given write access. <P> +See also the <A HREF="#read list">read list</A> option <P> +<B>Default:</B> write list = <P> +<B>Example:</B> write list = admin, root, @staff <P> + +<H3><A NAME="write raw">write raw (G)</A></H3> +This parameter controls whether or not the server will support raw writes +when transferring data from clients. <P> +<B>Default:</B> write raw = Yes <P> +<B>Example:</B> write raw = No <P> + +<H3><A NAME="USERNAME/PASSWORD VALIDATION">USERNAME/PASSWORD VALIDATION</A></H3> +There are a number of ways in which a user can connect to a +service. The server follows the following steps in determining if it will +allow a connection to a specified service. If all the steps fail then the +connection request is rejected. If one of the steps pass then the following +steps are not checked. <P> +If the service is marked "<A HREF="#guest only">guest only</A> = yes" then +steps 1 to 5 are skipped <P> +Step 1: If the client has passed a username/password +pair and that username/password pair is validated by the UNIX system's +password programs then the connection is made as that username. Note that +this includes the \\server\service%username method of passing a username. <P> +Step 2: If the client has previously registered a username with the system +and now supplies a correct password for that username then the connection +is allowed. <P> +Step 3: The client's netbios name and any previously used user +names are checked against the supplied password, if they match then the +connection is allowed as the corresponding user. <P> +Step 4: If the client has previously validated a username/password pair with +the server and the client has passed the validation token then that username +is used. This step is skipped if "<A HREF="#revalidate">revalidate</A> = yes" +for this service. <P> +Step 5: If a "<A HREF="#username">username</A> = " field is given in the +smb.conf file for the service and the client has supplied a password, and +that password matches (according to the UNIX system's password checking) with +one of the usernames from the username= field then the connection is made as +the username in the "username=" line. If one of the username in the username= +list begins with a @ then that name expands to a list of names in the group +of the same name. <P> +Step 6: If the service is a guest service then a connection is made as the +username given in the "<A HREF="#guest account">guest account</A> =" for the +service, irrespective of the supplied password.<P> + +<H3><A NAME="NAME MANGLING">NAME MANGLING </A></H3> +Samba supports "name mangling" so that DOS and Windows clients can use files +that don't conform to the 8.3 format. It can also be set to adjust the case of +8.3 format filenames. <P> +There are several options that control the way mangling is +performed, and they are grouped here rather than listed separately. <P> +All of these options can be set separately for each service (or globally, +of course). <P> +The options are: <P> +"<A HREF="#mangle case">mangle case</A> = yes/no" controls if names that have +characters that aren't of the "default" case are mangled. For example, if +this is yes then a name like "Mail" would be mangled. Default no. <P> +"<A HREF="#case sensitive">case sensitive</A> = yes/no" controls whether +filenames are case sensitive. If they aren't then Samba must do a filename +search and match on passed names. Default no. <P> +"<A HREF="#default case">default case</A> = upper/lower" controls what the +default case is for new filenames. Default lower. <P> +"<A HREF="#preserve case">preserve case</A> = yes/no" controls if new +files are created with the case that the client passes, or if they are +forced to be the "default" case. Default no. <P> +"<A HREF="#short preserve case">short preserve case</A> = yes/no" +controls if new files which conform to 8.3 syntax, that is all in upper +case and of suitable length, are created upper case, or if they are forced +to be the "default" case. This option can be use with "preserve case = +yes" to permit long filenames to retain their case, while short names +are lowered. Default no. <P> + </BODY> </HTML> |