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| author | cvs2svn Import User <samba-bugs@samba.org> | 2003-04-07 15:02:52 +0000 |
|---|---|---|
| committer | cvs2svn Import User <samba-bugs@samba.org> | 2003-04-07 15:02:52 +0000 |
| commit | 951aec08e8480690acbb10ab5e7db78db2e72061 (patch) | |
| tree | 099a6b97031961b9479924879735e8a0cd6bbeb0 | |
| parent | a48d89bb9d0092d9b2368d55fdd1e2350210c012 (diff) | |
| parent | f157e663f131bc26f351475226cce38b957cd0bd (diff) | |
| download | samba-951aec08e8480690acbb10ab5e7db78db2e72061.tar.gz samba-951aec08e8480690acbb10ab5e7db78db2e72061.tar.bz2 samba-951aec08e8480690acbb10ab5e7db78db2e72061.zip | |
This commit was manufactured by cvs2svn to create branch 'SAMBA_3_0'.(This used to be commit 43f21c87e12fe88dab6ccba13c2e54161cf87093)
134 files changed, 4029 insertions, 0 deletions
diff --git a/docs/docbook/projdoc/InterdomainTrusts.sgml b/docs/docbook/projdoc/InterdomainTrusts.sgml new file mode 100644 index 0000000000..0fc634c544 --- /dev/null +++ b/docs/docbook/projdoc/InterdomainTrusts.sgml @@ -0,0 +1,216 @@ +<chapter id="InterdomainTrusts"> +<chapterinfo> + &author.jht; + &author.mimir; + <pubdate>April 3, 2003</pubdate> +</chapterinfo> + +<title>Interdomain Trust Relationships</title> + +<para> +Samba-3 supports NT4 style domain trust relationships. This is feature that many sites +will want to use if they migrate to Samba-3 from and NT4 style domain and do NOT want to +adopt Active Directory or an LDAP based authentication back end. This section explains +some background information regarding trust relationships and how to create them. It is now +possible for Samba3 to NT4 trust (and vica versa), as well as Samba3 to Samba3 trusts. +</para> + +<sect1> +<title>Trust Relationship Background</title> + +<para> +MS Windows NT3.x/4.0 type security domains employ a non-hierchical security structure. +The limitations of this architecture as it affects the scalability of MS Windows networking +in large organisations is well known. Additionally, the flat-name space that results from +this design significantly impacts the delegation of administrative responsibilities in +large and diverse organisations. +</para> + +<para> +Microsoft developed Active Directory Service (ADS), based on Kerberos and LDAP, as a means +of circumventing the limitations of the older technologies. Not every organisation is ready +or willing to embrace ADS. For small companies the older NT4 style domain security paradigm +is quite adequate, there thus remains an entrenched user base for whom there is no direct +desire to go through a disruptive change to adopt ADS. +</para> + +<para> +Microsoft introduced with MS Windows NT the ability to allow differing security domains +to affect a mechanism so that users from one domain may be given access rights and privilidges +in another domain. The language that describes this capability is couched in terms of +<emphasis>Trusts</emphasis>. Specifically, one domain will <emphasis>trust</emphasis> the users +from another domain. The domain from which users are available to another security domain is +said to be a trusted domain. The domain in which those users have assigned rights and privilidges +is the trusting domain. With NT3.x/4.0 all trust relationships are always in one direction only, +thus if users in both domains are to have privilidges and rights in each others' domain, then it is +necessary to establish two (2) relationships, one in each direction. +</para> + +<para> +In an NT4 style MS security domain, all trusts are non-transitive. This means that if there +are three (3) domains (let's call them RED, WHITE, and BLUE) where RED and WHITE have a trust +relationship, and WHITE and BLUE have a trust relationship, then it holds that there is no +implied trust between the RED and BLUE domains. ie: Relationships are explicit and not +transitive. +</para> + +<para> +New to MS Windows 2000 ADS security contexts is the fact that trust relationships are two-way +by default. Also, all inter-ADS domain trusts are transitive. In the case of the RED, WHITE and BLUE +domains above, with Windows 2000 and ADS the RED and BLUE domains CAN trust each other. This is +an inherent feature of ADS domains. +</para> + +</sect1> + +<sect1> +<title>MS Windows NT4 Trust Configuration</title> + +<para> +There are two steps to creating an inter-domain trust relationship. + +<sect2> +<title>NT4 as the Trusting Domain</title> + +<para> +For MS Windows NT4, all domain trust relationships are configured using the Domain User Manager. +To affect a two way trust relationship it is necessary for each domain administrator to make +available (for use by an external domain) it's security resources. This is done from the Domain +User Manager Policies entry on the menu bar. From the Policy menu, select Trust Relationships, then +next to the lower box that is labelled "Permitted to Trust this Domain" are two buttons, "Add" and +"Remove". The "Add" button will open a panel in which needs to be entered the remote domain that +will be able to assign user rights to your domain. In addition it is necessary to enter a password +that is specific to this trust relationship. The password is added twice. +</para> + +</sect2> + +<sect2> +<title>NT4 as the Trusted Domain</title> + +<para> +A trust relationship will work only when the other (trusting) domain makes the appropriate connections +with the trusted domain. To consumate the trust relationship the administrator will launch the +Domain User Manager, from the menu select Policies, then select Trust Relationships, then click on the +"Add" button that is next to the box that is labelled "Trusted Domains". A panel will open in +which must be entered the name of the remote domain as well as the password assigned to that trust. +<para> + +</sect2> +</sect1> + +<sect1> +<title>Configuring Samba Domain Trusts</title> + +<para> +This descitpion is meant to be a fairly short introduction about how to set up a Samba server so +that it could participate in interdomain trust relationships. Trust relationship support in Samba +is in its early stage, so lot of things don't work yet. Paricularly, the contents of this document +applies to NT4-style trusts. +</para> + +<para> +Each of the procedures described below is treated as they were performed with Windows NT4 Server on +one end. The other end could just as well be another Samba3 domain. It can be clearly seen, after +reading this document, that combining Samba-specific parts of what's written below leads to trust +between domains in purely Samba environment. +</para> + +<sect2> +<title>Samba3 as the Trusting Domain</title> + +<para> +In order to set Samba PDC to be trusted party of the relationship first you need +to create special account for domain that will be the trusting party. To do that, +you can use 'smbpasswd' utility. Creating the trusted domain account is very +similiar to creating the connection to the trusting machine's account. Suppose, +your domain is called SAMBA, and the remote domain is called RUMBA. Your first +step will be to issue this command from your favourite shell: +</para> + +<para> +<screen> +<prompt>deity#</prompt> <userinput>smbpasswd -a -i rumba</userinput> + New SMB password: XXXXXXXX + Retype SMB password: XXXXXXXX + Added user rumba$ +</screen> + +where <parameter>-a</parameter> means to add a new account into the passdb database and <parameter>-i</parameter> means create this account with the Inter-Domain trust flag. +</para> + +<para> +The account name will be 'rumba$' (the name of the remote domain) +</para> + +<para> +fter issuing this command you'll be asked for typing account's +password. You can use any password you want, but be aware that Windows NT will +not change this password until 7 days have passed since account creating. +After command returns successfully, you can look at your new account's entry +(in the way depending on your configuration) and see that account's name is +really RUMBA$ and it has 'I' flag in the flags field. Now you're ready to confirm +the trust by establishing it from Windows NT Server. +</para> + +<para> +Open 'User Manager for Domains' and from menu 'Policies' select 'Trust Relationships...'. +Right beside 'Trusted domains' list press 'Add...' button. You'll be prompted for +trusted domain name and the relationship's password. Type in SAMBA, as this is +your domain name and the password you've just used during account creation. +Press OK and if everything went fine, you will see 'Trusted domain relationship +successfully established' message. Well done. +</para> + +</sect2> +<sect2> +<title>Samba3 as the Trusted Domain</title> + +<para> +This time activities are somewhat reversed. Again, we'll assume that your domain +controlled by Samba PDC is called SAMBA and NT-controlled domain is called RUMBA. +</para> + +<para> +The very first thing is to add account for SAMBA domain on RUMBA's PDC. +</para> + +<para> +Launch the Domain User Manager, then from the menu select 'Policies', 'Trust Relationships'. +Now, next to 'Trusted Domains' box press the 'Add' button, and type in the name of the trusted +domein (SAMBA) and password securing the relationship. +</para> + +<para> +Password can be arbitrarily chosen the more, because it's easy to change it +from Samba server whenever you want. After confirming password your account is +ready and waiting. Now it's Samba's turn. +</para> + +<para> +Using your favourite shell while being logged on as root, issue this command: +</para> + +<para> +<prompt>deity# </prompt><userinput>net rpc trustdom establish rumba</userinput> +</para> + +<para> +You'll be prompted for password you've just typed on your Windows NT4 Server box. +Don't worry if you will see the error message with returned code of +<errorname>NT_STATUS_NOLOGON_INTERDOMAIN_TRUST_ACCOUNT</errorname>. It means the +password you gave is correct and the NT4 Server says the account is ready for trusting your domain +and not for ordinary connection. After that, be patient it can take a while (especially +in large networks), you should see 'Success' message. Contgratulations! Your trust +relationship has just been established. +</para> + +<note><para> +Note that you have to run this command as root, since you need write access to +your <filename>secrets.tdb</filename> file. +</para></note> + +</sect2> +</sect1> + +</chapter> diff --git a/docs/docbook/smbdotconf/logging/debughirestimestamp.xml b/docs/docbook/smbdotconf/logging/debughirestimestamp.xml new file mode 100644 index 0000000000..4e49b89ddb --- /dev/null +++ b/docs/docbook/smbdotconf/logging/debughirestimestamp.xml @@ -0,0 +1,17 @@ +<samba:parameter name="debug hires timestamp" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Sometimes the timestamps in the log messages + are needed with a resolution of higher that seconds, this + boolean parameter adds microsecond resolution to the timestamp + message header when turned on.</para> + + <para>Note that the parameter <link linkend="DEBUGTIMESTAMP"><parameter moreinfo="none"> + debug timestamp</parameter></link> must be on for this to have an + effect.</para> + + <para>Default: <command moreinfo="none">debug hires timestamp = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/debuglevel.xml b/docs/docbook/smbdotconf/logging/debuglevel.xml new file mode 100644 index 0000000000..8bd4b4e0b5 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/debuglevel.xml @@ -0,0 +1,9 @@ +<samba:parameter name="debug level" + context="G" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="LOGLEVEL"><parameter moreinfo="none"> + log level</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/debugpid.xml b/docs/docbook/smbdotconf/logging/debugpid.xml new file mode 100644 index 0000000000..ff393f5159 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/debugpid.xml @@ -0,0 +1,19 @@ +<samba:parameter name="debug pid" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>When using only one log file for more then one forked + <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry>-process there may be hard to + follow which process outputs which message. This boolean parameter + is adds the process-id to the timestamp message headers in the + logfile when turned on.</para> + + <para>Note that the parameter <link linkend="DEBUGTIMESTAMP"><parameter moreinfo="none"> + debug timestamp</parameter></link> must be on for this to have an + effect.</para> + + <para>Default: <command moreinfo="none">debug pid = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/debugtimestamp.xml b/docs/docbook/smbdotconf/logging/debugtimestamp.xml new file mode 100644 index 0000000000..e337b5b8f2 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/debugtimestamp.xml @@ -0,0 +1,14 @@ +<samba:parameter name="debug timestamp" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Samba debug log messages are timestamped + by default. If you are running at a high <link linkend="DEBUGLEVEL"> + <parameter moreinfo="none">debug level</parameter></link> these timestamps + can be distracting. This boolean parameter allows timestamping + to be turned off.</para> + + <para>Default: <command moreinfo="none">debug timestamp = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/debuguid.xml b/docs/docbook/smbdotconf/logging/debuguid.xml new file mode 100644 index 0000000000..bcacdf32c0 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/debuguid.xml @@ -0,0 +1,17 @@ +<samba:parameter name="debug uid" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Samba is sometimes run as root and sometime + run as the connected user, this boolean parameter inserts the + current euid, egid, uid and gid to the timestamp message headers + in the log file if turned on.</para> + + <para>Note that the parameter <link linkend="DEBUGTIMESTAMP"><parameter moreinfo="none"> + debug timestamp</parameter></link> must be on for this to have an + effect.</para> + + <para>Default: <command moreinfo="none">debug uid = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/logfile.xml b/docs/docbook/smbdotconf/logging/logfile.xml new file mode 100644 index 0000000000..8d3761a841 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/logfile.xml @@ -0,0 +1,14 @@ +<samba:parameter name="log file" + context="G" + developer="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option allows you to override the name + of the Samba log file (also known as the debug file).</para> + + <para>This option takes the standard substitutions, allowing + you to have separate log files for each user or machine.</para> + + <para>Example: <command moreinfo="none">log file = /usr/local/samba/var/log.%m</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/loglevel.xml b/docs/docbook/smbdotconf/logging/loglevel.xml new file mode 100644 index 0000000000..6f03fe80e9 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/loglevel.xml @@ -0,0 +1,18 @@ +<samba:parameter name="log level" + context="G" + developer="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The value of the parameter (a astring) allows + the debug level (logging level) to be specified in the + <filename moreinfo="none">smb.conf</filename> file. This parameter has been + extended since the 2.2.x series, now it allow to specify the debug + level for multiple debug classes. This is to give greater + flexibility in the configuration of the system.</para> + + <para>The default will be the log level specified on + the command line or level zero if none was specified.</para> + + <para>Example: <command moreinfo="none">log level = 3 passdb:5 auth:10 winbind:2</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/maxlogsize.xml b/docs/docbook/smbdotconf/logging/maxlogsize.xml new file mode 100644 index 0000000000..6e0ec6735a --- /dev/null +++ b/docs/docbook/smbdotconf/logging/maxlogsize.xml @@ -0,0 +1,17 @@ +<samba:parameter name="max log size" + context="G" + developer="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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 <filename moreinfo="none">.old</filename> extension.</para> + + <para>A size of 0 means no limit.</para> + + <para>Default: <command moreinfo="none">max log size = 5000</command></para> + + <para>Example: <command moreinfo="none">max log size = 1000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/syslog.xml b/docs/docbook/smbdotconf/logging/syslog.xml new file mode 100644 index 0000000000..0fdf070045 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/syslog.xml @@ -0,0 +1,20 @@ +<samba:parameter name="syslog" + context="G" + developer="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter maps how Samba debug messages + are logged onto the system syslog logging levels. Samba debug + level zero maps onto syslog <constant>LOG_ERR</constant>, debug + level one maps onto <constant>LOG_WARNING</constant>, debug level + two maps onto <constant>LOG_NOTICE</constant>, debug level three + maps onto LOG_INFO. All higher levels are mapped to <constant> + LOG_DEBUG</constant>.</para> + + <para>This parameter sets the threshold for sending messages + to syslog. Only messages with debug level less than this value + will be sent to syslog.</para> + + <para>Default: <command moreinfo="none">syslog = 1</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/syslogonly.xml b/docs/docbook/smbdotconf/logging/syslogonly.xml new file mode 100644 index 0000000000..2b584d8d6d --- /dev/null +++ b/docs/docbook/smbdotconf/logging/syslogonly.xml @@ -0,0 +1,12 @@ +<samba:parameter name="syslog only" + context="G" + developer="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>If this parameter is set then Samba debug + messages are logged into the system syslog only, and not to + the debug log files.</para> + + <para>Default: <command moreinfo="none">syslog only = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/logging/timestamplogs.xml b/docs/docbook/smbdotconf/logging/timestamplogs.xml new file mode 100644 index 0000000000..e744ce54c6 --- /dev/null +++ b/docs/docbook/smbdotconf/logging/timestamplogs.xml @@ -0,0 +1,9 @@ +<samba:parameter name="timestamp logs" + context="G" + developer="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="DEBUGTIMESTAMP"><parameter moreinfo="none"> + debug timestamp</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/disablespoolss.xml b/docs/docbook/smbdotconf/printing/disablespoolss.xml new file mode 100644 index 0000000000..366092fce1 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/disablespoolss.xml @@ -0,0 +1,23 @@ +<samba:parameter name="disable spoolss" + context="G" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Enabling this parameter will disable Samba's support + for the SPOOLSS set of MS-RPC's and will yield identical behavior + as Samba 2.0.x. Windows NT/2000 clients will downgrade to using + Lanman style printing commands. Windows 9x/ME will be uneffected by + the parameter. However, this will also disable the ability to upload + printer drivers to a Samba server via the Windows NT Add Printer + Wizard or by using the NT printer properties dialog window. It will + also disable the capability of Windows NT/2000 clients to download + print drivers from the Samba host upon demand. + <emphasis>Be very careful about enabling this parameter.</emphasis> + </para> + + <para>See also <link linkend="USECLIENTDRIVER">use client driver</link> + </para> + + <para>Default : <command moreinfo="none">disable spoolss = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/loadprinters.xml b/docs/docbook/smbdotconf/printing/loadprinters.xml new file mode 100644 index 0000000000..efc2658ba8 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/loadprinters.xml @@ -0,0 +1,13 @@ +<samba:parameter name="load printers" + context="G" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>A boolean variable that controls whether all + printers in the printcap will be loaded for browsing by default. + See the <link linkend="PRINTERSSECT">printers</link> section for + more details.</para> + + <para>Default: <command moreinfo="none">load printers = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/lpqcommand.xml b/docs/docbook/smbdotconf/printing/lpqcommand.xml new file mode 100644 index 0000000000..f1b62af627 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/lpqcommand.xml @@ -0,0 +1,44 @@ +<samba:parameter name="lpq command" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter specifies the command to be + executed on the server host in order to obtain <command moreinfo="none">lpq + </command>-style printer status information.</para> + + <para>This command should be a program or script which + takes a printer name as its only parameter and outputs printer + status information.</para> + + <para>Currently nine styles of printer status information + are supported; BSD, AIX, LPRNG, PLP, SYSV, HPUX, QNX, CUPS, and SOFTQ. + This covers most UNIX systems. You control which type is expected + using the <parameter moreinfo="none">printing =</parameter> option.</para> + + <para>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.</para> + + <para>If a <parameter moreinfo="none">%p</parameter> is given then the printer name + is put in its place. Otherwise it is placed at the end of the + command.</para> + + <para>Note that it is good practice to include the absolute path + in the <parameter moreinfo="none">lpq command</parameter> as the <envar>$PATH + </envar> may not be available to the server. When compiled with + the CUPS libraries, no <parameter moreinfo="none">lpq command</parameter> is + needed because smbd will make a library call to obtain the + print queue listing.</para> + + <para>See also the <link linkend="PRINTING"><parameter moreinfo="none">printing + </parameter></link> parameter.</para> + + <para>Default: <emphasis>depends on the setting of <parameter moreinfo="none"> + printing</parameter></emphasis></para> + + <para>Example: <command moreinfo="none">lpq command = /usr/bin/lpq -P%p</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/lprmcommand.xml b/docs/docbook/smbdotconf/printing/lprmcommand.xml new file mode 100644 index 0000000000..567602c4f9 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/lprmcommand.xml @@ -0,0 +1,30 @@ +<samba:parameter name="lprm command" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter specifies the command to be + executed on the server host in order to delete a print job.</para> + + <para>This command should be a program or script which takes + a printer name and job number, and deletes the print job.</para> + + <para>If a <parameter moreinfo="none">%p</parameter> is given then the printer name + is put in its place. A <parameter moreinfo="none">%j</parameter> is replaced with + the job number (an integer).</para> + + <para>Note that it is good practice to include the absolute + path in the <parameter moreinfo="none">lprm command</parameter> as the PATH may not be + available to the server.</para> + + <para>See also the <link linkend="PRINTING"><parameter moreinfo="none">printing + </parameter></link> parameter.</para> + + <para>Default: <emphasis>depends on the setting of <parameter moreinfo="none">printing + </parameter></emphasis></para> + + <para>Example 1: <command moreinfo="none">lprm command = /usr/bin/lprm -P%p %j</command></para> + + <para>Example 2: <command moreinfo="none">lprm command = /usr/bin/cancel %p-%j</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/maxprintjobs.xml b/docs/docbook/smbdotconf/printing/maxprintjobs.xml new file mode 100644 index 0000000000..a631b6b8c4 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/maxprintjobs.xml @@ -0,0 +1,18 @@ +<samba:parameter name="max print jobs" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter limits the maximum number of + jobs allowable in a Samba printer queue at any given moment. + If this number is exceeded, <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will remote "Out of Space" to the client. + See all <link linkend="TOTALPRINTJOBS"><parameter moreinfo="none">total + print jobs</parameter></link>. + </para> + + <para>Default: <command moreinfo="none">max print jobs = 1000</command></para> + + <para>Example: <command moreinfo="none">max print jobs = 5000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/printable.xml b/docs/docbook/smbdotconf/printing/printable.xml new file mode 100644 index 0000000000..946e8b4b96 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/printable.xml @@ -0,0 +1,18 @@ +<samba:parameter name="printable" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>If this parameter is <constant>yes</constant>, then + clients may open, write to and submit spool files on the directory + specified for the service. </para> + + <para>Note that a printable service will ALWAYS allow writing + to the service path (user privileges permitting) via the spooling + of print data. The <link linkend="READONLY"><parameter moreinfo="none">read only + </parameter></link> parameter controls only non-printing access to + the resource.</para> + + <para>Default: <command moreinfo="none">printable = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/printcap.xml b/docs/docbook/smbdotconf/printing/printcap.xml new file mode 100644 index 0000000000..0ee08a263f --- /dev/null +++ b/docs/docbook/smbdotconf/printing/printcap.xml @@ -0,0 +1,9 @@ +<samba:parameter name="printcap" + context="G" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="PRINTCAPNAME"><parameter moreinfo="none"> + printcap name</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/printcommand.xml b/docs/docbook/smbdotconf/printing/printcommand.xml new file mode 100644 index 0000000000..5444309053 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/printcommand.xml @@ -0,0 +1,89 @@ +<samba:parameter name="print command" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>After a print job has finished spooling to + a service, this command will be used via a <command moreinfo="none">system()</command> + 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.</para> + + <para>The print command is simply a text string. It will be used + verbatim after macro substitutions have been made:</para> + + <para>%s, %p - the path to the spool + file name</para> + + <para>%p - the appropriate printer + name</para> + + <para>%J - the job + name as transmitted by the client.</para> + + <para>%c - The number of printed pages + of the spooled job (if known).</para> + + <para>%z - the size of the spooled + print job (in bytes)</para> + + <para>The print command <emphasis>MUST</emphasis> contain at least + one occurrence of <parameter moreinfo="none">%s</parameter> or <parameter moreinfo="none">%f + </parameter> - the <parameter moreinfo="none">%p</parameter> is optional. At the time + a job is submitted, if no printer name is supplied the <parameter moreinfo="none">%p + </parameter> will be silently removed from the printer command.</para> + + <para>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.</para> + + <para>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.</para> + + <para>Note that printing may fail on some UNIXes from the + <constant>nobody</constant> account. If this happens then create + an alternative guest account that can print and set the <link linkend="GUESTACCOUNT"> + <parameter moreinfo="none">guest account</parameter></link> + in the [global] section.</para> + + <para>You can form quite complex print commands by realizing + 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.</para> + + <para><command moreinfo="none">print command = echo Printing %s >> + /tmp/print.log; lpr -P %p %s; rm %s</command></para> + + <para>You may have to vary this command considerably depending + on how you normally print files on your system. The default for + the parameter varies depending on the setting of the <link linkend="PRINTING"> + <parameter moreinfo="none">printing</parameter></link> parameter.</para> + + <para>Default: For <command moreinfo="none">printing = BSD, AIX, QNX, LPRNG + or PLP :</command></para> + <para><command moreinfo="none">print command = lpr -r -P%p %s</command></para> + + <para>For <command moreinfo="none">printing = SYSV or HPUX :</command></para> + <para><command moreinfo="none">print command = lp -c -d%p %s; rm %s</command></para> + + <para>For <command moreinfo="none">printing = SOFTQ :</command></para> + <para><command moreinfo="none">print command = lp -d%p -s %s; rm %s</command></para> + + <para>For printing = CUPS : If SAMBA is compiled against + libcups, then <link linkend="PRINTING">printcap = cups</link> + uses the CUPS API to + submit jobs, etc. Otherwise it maps to the System V + commands with the -oraw option for printing, i.e. it + uses <command moreinfo="none">lp -c -d%p -oraw; rm %s</command>. + With <command moreinfo="none">printing = cups</command>, + and if SAMBA is compiled against libcups, any manually + set print command will be ignored.</para> + + + <para>Example: <command moreinfo="none">print command = /usr/local/samba/bin/myprintscript %p %s</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/printok.xml b/docs/docbook/smbdotconf/printing/printok.xml new file mode 100644 index 0000000000..0a0e6605f1 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/printok.xml @@ -0,0 +1,9 @@ +<samba:parameter name="print ok" + context="S" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="PRINTABLE"> + <parameter moreinfo="none">printable</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/printing/totalprintjobs.xml b/docs/docbook/smbdotconf/printing/totalprintjobs.xml new file mode 100644 index 0000000000..ccdb137a69 --- /dev/null +++ b/docs/docbook/smbdotconf/printing/totalprintjobs.xml @@ -0,0 +1,22 @@ +<samba:parameter name="total print jobs" + context="G" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter accepts an integer value which defines + a limit on the maximum number of print jobs that will be accepted + system wide at any given time. If a print job is submitted + by a client which will exceed this number, then <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will return an + error indicating that no space is available on the server. The + default value of 0 means that no such limit exists. This parameter + can be used to prevent a server from exceeding its capacity and is + designed as a printing throttle. See also <link linkend="MAXPRINTJOBS"> + <parameter moreinfo="none">max print jobs</parameter></link>. + </para> + + <para>Default: <command moreinfo="none">total print jobs = 0</command></para> + + <para>Example: <command moreinfo="none">total print jobs = 5000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/announceas.xml b/docs/docbook/smbdotconf/protocol/announceas.xml new file mode 100644 index 0000000000..b063fcc1b7 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/announceas.xml @@ -0,0 +1,21 @@ +<samba:parameter name="announce as" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This specifies what type of server <citerefentry><refentrytitle>nmbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will announce itself as, to a network neighborhood browse + list. By default this is set to Windows NT. The valid options + are : "NT Server" (which can also be written as "NT"), + "NT Workstation", "Win95" or "WfW" meaning Windows NT Server, + Windows NT Workstation, 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.</para> + + <para>Default: <command moreinfo="none">announce as = NT Server</command></para> + + <para>Example: <command moreinfo="none">announce as = Win95</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/announceversion.xml b/docs/docbook/smbdotconf/protocol/announceversion.xml new file mode 100644 index 0000000000..217004b5fc --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/announceversion.xml @@ -0,0 +1,15 @@ +<samba:parameter name="announce version" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This specifies the major and minor version numbers + that nmbd will use when announcing itself as a server. The default + is 4.9. Do not change this parameter unless you have a specific + need to set a Samba server to be a downlevel server.</para> + + <para>Default: <command moreinfo="none">announce version = 4.9</command></para> + + <para>Example: <command moreinfo="none">announce version = 2.0</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/disablenetbios.xml b/docs/docbook/smbdotconf/protocol/disablenetbios.xml new file mode 100644 index 0000000000..2fe92d00b7 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/disablenetbios.xml @@ -0,0 +1,18 @@ +<samba:parameter name="disable netbios" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Enabling this parameter will disable netbios support + in Samba. Netbios is the only available form of browsing in + all windows versions except for 2000 and XP. </para> + + <note><para>Note that clients that only support netbios won't be able to + see your samba server when netbios support is disabled. + </para></note> + + <para>Default: <command moreinfo="none">disable netbios = no</command></para> + + <para>Example: <command moreinfo="none">disable netbios = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/largereadwrite.xml b/docs/docbook/smbdotconf/protocol/largereadwrite.xml new file mode 100644 index 0000000000..25c58899c4 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/largereadwrite.xml @@ -0,0 +1,18 @@ +<samba:parameter name="large readwrite" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter determines whether or not + <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> supports the new 64k + streaming read and write varient SMB requests introduced with + Windows 2000. Note that due to Windows 2000 client redirector bugs + this requires Samba to be running on a 64-bit capable operating + system such as IRIX, Solaris or a Linux 2.4 kernel. Can improve + performance by 10% with Windows 2000 clients. Defaults to on. Not as + tested as some other Samba code paths.</para> + + <para>Default: <command moreinfo="none">large readwrite = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/maxmux.xml b/docs/docbook/smbdotconf/protocol/maxmux.xml new file mode 100644 index 0000000000..c05487fdca --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/maxmux.xml @@ -0,0 +1,12 @@ +<samba:parameter name="max mux" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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.</para> + + <para>Default: <command moreinfo="none">max mux = 50</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/maxprotocol.xml b/docs/docbook/smbdotconf/protocol/maxprotocol.xml new file mode 100644 index 0000000000..3f4e917828 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/maxprotocol.xml @@ -0,0 +1,48 @@ +<samba:parameter name="max protocol" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The value of the parameter (a string) is the highest + protocol level that will be supported by the server.</para> + + <para>Possible values are :</para> + <itemizedlist> + <listitem> + <para><constant>CORE</constant>: Earliest version. No + concept of user names.</para> + </listitem> + + <listitem> + <para><constant>COREPLUS</constant>: Slight improvements on + CORE for efficiency.</para> + </listitem> + + <listitem> + <para><constant>LANMAN1</constant>: First <emphasis> + modern</emphasis> version of the protocol. Long filename + support.</para> + </listitem> + + <listitem> + <para><constant>LANMAN2</constant>: Updates to Lanman1 protocol.</para> + </listitem> + + <listitem> + <para><constant>NT1</constant>: Current up to date version of the protocol. + Used by Windows NT. Known as CIFS.</para> + </listitem> + </itemizedlist> + + <para>Normally this option should not be set as the automatic + negotiation phase in the SMB protocol takes care of choosing + the appropriate protocol.</para> + + <para>See also <link linkend="MINPROTOCOL"><parameter moreinfo="none">min + protocol</parameter></link></para> + + <para>Default: <command moreinfo="none">max protocol = NT1</command></para> + + <para>Example: <command moreinfo="none">max protocol = LANMAN1</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/maxttl.xml b/docs/docbook/smbdotconf/protocol/maxttl.xml new file mode 100644 index 0000000000..63c2b57ad7 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/maxttl.xml @@ -0,0 +1,14 @@ +<samba:parameter name="max ttl" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option tells <citerefentry><refentrytitle>nmbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> what the default 'time to live' + of NetBIOS names should be (in seconds) when <command moreinfo="none">nmbd</command> is + requesting a name using either a broadcast packet or from a WINS server. You should + never need to change this parameter. The default is 3 days.</para> + + <para>Default: <command moreinfo="none">max ttl = 259200</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/maxwinsttl.xml b/docs/docbook/smbdotconf/protocol/maxwinsttl.xml new file mode 100644 index 0000000000..eafacc28fa --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/maxwinsttl.xml @@ -0,0 +1,18 @@ +<samba:parameter name="max wins ttl" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option tells <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> when acting as a WINS server (<link linkend="WINSSUPPORT"> + <parameter moreinfo="none">wins support = yes</parameter></link>) what the maximum + 'time to live' of NetBIOS names that <command moreinfo="none">nmbd</command> + will grant will be (in seconds). You should never need to change this + parameter. The default is 6 days (518400 seconds).</para> + + <para>See also the <link linkend="MINWINSTTL"><parameter moreinfo="none">min + wins ttl</parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">max wins ttl = 518400</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/maxxmit.xml b/docs/docbook/smbdotconf/protocol/maxxmit.xml new file mode 100644 index 0000000000..3125b8d3b9 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/maxxmit.xml @@ -0,0 +1,16 @@ +<samba:parameter name="max xmit" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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. + </para> + + <para>Default: <command moreinfo="none">max xmit = 65535</command></para> + + <para>Example: <command moreinfo="none">max xmit = 8192</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/minprotocol.xml b/docs/docbook/smbdotconf/protocol/minprotocol.xml new file mode 100644 index 0000000000..f382701948 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/minprotocol.xml @@ -0,0 +1,23 @@ +<samba:parameter name="min protocol" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The value of the parameter (a string) is the + lowest SMB protocol dialect than Samba will support. Please refer + to the <link linkend="MAXPROTOCOL"><parameter moreinfo="none">max protocol</parameter></link> + parameter for a list of valid protocol names and a brief description + of each. You may also wish to refer to the C source code in + <filename moreinfo="none">source/smbd/negprot.c</filename> for a listing of known protocol + dialects supported by clients.</para> + + <para>If you are viewing this parameter as a security measure, you should + also refer to the <link linkend="LANMANAUTH"><parameter moreinfo="none">lanman + auth</parameter></link> parameter. Otherwise, you should never need + to change this parameter.</para> + + <para>Default : <command moreinfo="none">min protocol = CORE</command></para> + + <para>Example : <command moreinfo="none">min protocol = NT1</command> # disable DOS clients</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/minwinsttl.xml b/docs/docbook/smbdotconf/protocol/minwinsttl.xml new file mode 100644 index 0000000000..8ad1a5600f --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/minwinsttl.xml @@ -0,0 +1,16 @@ +<samba:parameter name="min wins ttl" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option tells <citerefentry><refentrytitle>nmbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> + when acting as a WINS server (<link linkend="WINSSUPPORT"><parameter moreinfo="none"> + wins support = yes</parameter></link>) what the minimum 'time to live' + of NetBIOS names that <command moreinfo="none">nmbd</command> will grant will be (in + seconds). You should never need to change this parameter. The default + is 6 hours (21600 seconds).</para> + + <para>Default: <command moreinfo="none">min wins ttl = 21600</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/nameresolveorder.xml b/docs/docbook/smbdotconf/protocol/nameresolveorder.xml new file mode 100644 index 0000000000..897d04ad1c --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/nameresolveorder.xml @@ -0,0 +1,58 @@ +<samba:parameter name="name resolve order" + context="G" + advanced="1" wizard="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option is used by the programs in the Samba + suite to determine what naming services to use and in what order + to resolve host names to IP addresses. The option takes a space + separated string of name resolution options.</para> + + <para>The options are: "lmhosts", "host", + "wins" and "bcast". They cause names to be + resolved as follows:</para> + + <itemizedlist> + <listitem> + <para><constant>lmhosts</constant> : Lookup an IP + address in the Samba lmhosts file. If the line in lmhosts has + no name type attached to the NetBIOS name (see the <ulink url="lmhosts.5.html">lmhosts(5)</ulink> for details) then + any name type matches for lookup.</para> + </listitem> + + <listitem> + <para><constant>host</constant> : Do a standard host + name to IP address resolution, using the system <filename moreinfo="none">/etc/hosts + </filename>, NIS, or DNS lookups. This method of name resolution + is operating system depended for instance on IRIX or Solaris this + may be controlled by the <filename moreinfo="none">/etc/nsswitch.conf</filename> + file. Note that this method is only used if the NetBIOS name + type being queried is the 0x20 (server) name type, otherwise + it is ignored.</para> + </listitem> + + <listitem> + <para><constant>wins</constant> : Query a name with + the IP address listed in the <link linkend="WINSSERVER"><parameter moreinfo="none"> + wins server</parameter></link> parameter. If no WINS server has + been specified this method will be ignored.</para> + </listitem> + + <listitem> + <para><constant>bcast</constant> : Do a broadcast on + each of the known local interfaces listed in the <link linkend="INTERFACES"><parameter moreinfo="none">interfaces</parameter></link> + parameter. This is the least reliable of the name resolution + methods as it depends on the target host being on a locally + connected subnet.</para> + </listitem> + </itemizedlist> + + <para>Default: <command moreinfo="none">name resolve order = lmhosts host wins bcast</command></para> + + <para>Example: <command moreinfo="none">name resolve order = lmhosts bcast host</command></para> + + <para>This will cause the local lmhosts file to be examined + first, followed by a broadcast attempt, followed by a normal + system hostname lookup.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/ntaclsupport.xml b/docs/docbook/smbdotconf/protocol/ntaclsupport.xml new file mode 100644 index 0000000000..64276d51c3 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/ntaclsupport.xml @@ -0,0 +1,14 @@ +<samba:parameter name="nt acl support" + context="S" + advanced="1" wizard="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean parameter controls whether <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will attempt to map + UNIX permissions into Windows NT access control lists. + This parameter was formally a global parameter in releases + prior to 2.2.2.</para> + + <para>Default: <command moreinfo="none">nt acl support = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/ntpipesupport.xml b/docs/docbook/smbdotconf/protocol/ntpipesupport.xml new file mode 100644 index 0000000000..e5c42a7696 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/ntpipesupport.xml @@ -0,0 +1,15 @@ +<samba:parameter name="nt pipe support" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean parameter controls whether + <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will allow Windows NT + clients to connect to the NT SMB specific <constant>IPC$</constant> + pipes. This is a developer debugging option and can be left + alone.</para> + + <para>Default: <command moreinfo="none">nt pipe support = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/ntstatussupport.xml b/docs/docbook/smbdotconf/protocol/ntstatussupport.xml new file mode 100644 index 0000000000..ecb19128ee --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/ntstatussupport.xml @@ -0,0 +1,17 @@ +<samba:parameter name="nt status support" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean parameter controls whether <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will negotiate NT specific status + support with Windows NT/2k/XP clients. This is a developer debugging option and should be left alone. + If this option is set to <constant>no</constant> then Samba offers + exactly the same DOS error codes that versions prior to Samba 2.2.3 + reported.</para> + + <para>You should not need to ever disable this parameter.</para> + + <para>Default: <command moreinfo="none">nt status support = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/protocol.xml b/docs/docbook/smbdotconf/protocol/protocol.xml new file mode 100644 index 0000000000..19926649c0 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/protocol.xml @@ -0,0 +1,9 @@ +<samba:parameter name="protocol" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="MAXPROTOCOL"> + <parameter moreinfo="none">max protocol</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/readbmpx.xml b/docs/docbook/smbdotconf/protocol/readbmpx.xml new file mode 100644 index 0000000000..0298407cef --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/readbmpx.xml @@ -0,0 +1,15 @@ +<samba:parameter name="read bmpx" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean parameter controls whether + <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will support the "Read + Block Multiplex" SMB. This is now rarely used and defaults to + <constant>no</constant>. You should never need to set this + parameter.</para> + + <para>Default: <command moreinfo="none">read bmpx = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/readraw.xml b/docs/docbook/smbdotconf/protocol/readraw.xml new file mode 100644 index 0000000000..6b24f39d68 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/readraw.xml @@ -0,0 +1,24 @@ +<samba:parameter name="read raw" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls whether or not the server + will support the raw read SMB requests when transferring data + to clients.</para> + + <para>If enabled, raw reads allow reads of 65535 bytes in + one packet. This typically provides a major performance benefit. + </para> + + <para>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.</para> + + <para>In general this parameter should be viewed as a system tuning + tool and left severely alone. See also <link linkend="WRITERAW"> + <parameter moreinfo="none">write raw</parameter></link>.</para> + + <para>Default: <command moreinfo="none">read raw = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/smbports.xml b/docs/docbook/smbdotconf/protocol/smbports.xml new file mode 100644 index 0000000000..9d06c37964 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/smbports.xml @@ -0,0 +1,10 @@ +<samba:parameter name="smb ports" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Specifies which ports the server should listen on for SMB traffic.</para> + + <para>Default: <command moreinfo="none">smb ports = 445 139</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/timeserver.xml b/docs/docbook/smbdotconf/protocol/timeserver.xml new file mode 100644 index 0000000000..d78f9a456d --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/timeserver.xml @@ -0,0 +1,12 @@ +<samba:parameter name="time server" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter determines if <citerefentry><refentrytitle>nmbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> advertises itself as a time server to Windows + clients.</para> + + <para>Default: <command moreinfo="none">time server = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/unicode.xml b/docs/docbook/smbdotconf/protocol/unicode.xml new file mode 100644 index 0000000000..be93cb61e2 --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/unicode.xml @@ -0,0 +1,13 @@ +<samba:parameter name="unicode" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Specifies whether Samba should try + to use unicode on the wire by default. Note: This does NOT + mean that samba will assume that the unix machine uses unicode! + </para> + + <para>Default: <command moreinfo="none">unicode = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/unixextensions.xml b/docs/docbook/smbdotconf/protocol/unixextensions.xml new file mode 100644 index 0000000000..2f68b9605e --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/unixextensions.xml @@ -0,0 +1,15 @@ +<samba:parameter name="unix extensions" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean parameter controls whether Samba + implments the CIFS UNIX extensions, as defined by HP. + These extensions enable Samba to better serve UNIX CIFS clients + by supporting features such as symbolic links, hard links, etc... + These extensions require a similarly enabled client, and are of + no current use to Windows clients.</para> + + <para>Default: <command moreinfo="none">unix extensions = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/usespnego.xml b/docs/docbook/smbdotconf/protocol/usespnego.xml new file mode 100644 index 0000000000..88c9f1df7a --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/usespnego.xml @@ -0,0 +1,15 @@ +<samba:parameter name="use spnego" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para> This variable controls controls whether samba will try + to use Simple and Protected NEGOciation (as specified by rfc2478) with + WindowsXP and Windows2000sp2 clients to agree upon an authentication mechanism. + Unless further issues are discovered with our SPNEGO + implementation, there is no reason this should ever be + disabled.</para> + + <para>Default: <emphasis>use spnego = yes</emphasis></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/protocol/writeraw.xml b/docs/docbook/smbdotconf/protocol/writeraw.xml new file mode 100644 index 0000000000..e71c54cabd --- /dev/null +++ b/docs/docbook/smbdotconf/protocol/writeraw.xml @@ -0,0 +1,12 @@ +<samba:parameter name="write raw" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls whether or not the server + will support raw write SMB's when transferring data from clients. + You should never need to change this parameter.</para> + + <para>Default: <command moreinfo="none">write raw = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/adminusers.xml b/docs/docbook/smbdotconf/security/adminusers.xml new file mode 100644 index 0000000000..09989aa79a --- /dev/null +++ b/docs/docbook/smbdotconf/security/adminusers.xml @@ -0,0 +1,17 @@ +<samba:parameter name="admin users" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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).</para> + + <para>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.</para> + + <para>Default: <emphasis>no admin users</emphasis></para> + + <para>Example: <command moreinfo="none">admin users = jason</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/algorithmicridbase.xml b/docs/docbook/smbdotconf/security/algorithmicridbase.xml new file mode 100644 index 0000000000..d1d33d419b --- /dev/null +++ b/docs/docbook/smbdotconf/security/algorithmicridbase.xml @@ -0,0 +1,27 @@ +<samba:parameter name="algorithmic rid base" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This determines how Samba will use its + algorithmic mapping from uids/gid to the RIDs needed to construct + NT Security Identifiers. + </para> + + <para>Setting this option to a larger value could be useful to sites + transitioning from WinNT and Win2k, as existing user and + group rids would otherwise clash with sytem users etc. + </para> + + <para>All UIDs and GIDs must be able to be resolved into SIDs for + the correct operation of ACLs on the server. As such the algorithmic + mapping can't be 'turned off', but pushing it 'out of the way' should + resolve the issues. Users and groups can then be assigned 'low' RIDs + in arbitary-rid supporting backends. + </para> + + <para>Default: <command moreinfo="none">algorithmic rid base = 1000</command></para> + + <para>Example: <command moreinfo="none">algorithmic rid base = 100000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/allowhosts.xml b/docs/docbook/smbdotconf/security/allowhosts.xml new file mode 100644 index 0000000000..ea7c0fa05e --- /dev/null +++ b/docs/docbook/smbdotconf/security/allowhosts.xml @@ -0,0 +1,9 @@ +<samba:parameter name="allow hosts" + context="S" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="HOSTSALLOW"> + <parameter moreinfo="none">hosts allow</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/allowtrusteddomains.xml b/docs/docbook/smbdotconf/security/allowtrusteddomains.xml new file mode 100644 index 0000000000..63363d2607 --- /dev/null +++ b/docs/docbook/smbdotconf/security/allowtrusteddomains.xml @@ -0,0 +1,26 @@ +<samba:parameter name="allow trusted domains" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option only takes effect when the <link linkend="SECURITY"> + <parameter moreinfo="none">security</parameter></link> option is set to + <constant>server</constant> or <constant>domain</constant>. + If it is set to no, then attempts to connect to a resource from + a domain or workgroup other than the one which <ulink url="smbd.8.html">smbd</ulink> is running + in will fail, even if that domain is trusted by the remote server + doing the authentication.</para> + + <para>This is useful if you only want your Samba server to + serve resources to users in the domain it is a member of. As + an example, suppose that there are two domains DOMA and DOMB. DOMB + is trusted by DOMA, which contains the Samba server. Under normal + circumstances, a user with an account in DOMB can then access the + resources of a UNIX account with the same account name on the + Samba server even if they do not have an account in DOMA. This + can make implementing a security boundary difficult.</para> + + <para>Default: <command moreinfo="none">allow trusted domains = yes</command></para> + +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/authmethods.xml b/docs/docbook/smbdotconf/security/authmethods.xml new file mode 100644 index 0000000000..0b7965d55b --- /dev/null +++ b/docs/docbook/smbdotconf/security/authmethods.xml @@ -0,0 +1,19 @@ +<samba:parameter name="auth methods" + context="G" + basic="1" advanced="1" wizard="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option allows the administrator to chose what + authentication methods <command moreinfo="none">smbd</command> will use when authenticating + a user. This option defaults to sensible values based on <link linkend="SECURITY"> + <parameter moreinfo="none">security</parameter></link>.</para> + + <para>Each entry in the list attempts to authenticate the user in turn, until + the user authenticates. In practice only one method will ever actually + be able to complete the authentication. + </para> + + <para>Default: <command moreinfo="none">auth methods = <empty string></command></para> + <para>Example: <command moreinfo="none">auth methods = guest sam ntdomain</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/createmode.xml b/docs/docbook/smbdotconf/security/createmode.xml new file mode 100644 index 0000000000..c49acf070d --- /dev/null +++ b/docs/docbook/smbdotconf/security/createmode.xml @@ -0,0 +1,8 @@ +<samba:parameter name="create mode" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a synonym for <link linkend="CREATEMASK"><parameter moreinfo="none"> + create mask</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/denyhosts.xml b/docs/docbook/smbdotconf/security/denyhosts.xml new file mode 100644 index 0000000000..d5ffb0e452 --- /dev/null +++ b/docs/docbook/smbdotconf/security/denyhosts.xml @@ -0,0 +1,9 @@ +<samba:parameter name="deny hosts" + context="S" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="HOSTSDENY"><parameter moreinfo="none">hosts + deny</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/directorymask.xml b/docs/docbook/smbdotconf/security/directorymask.xml new file mode 100644 index 0000000000..d50047d46f --- /dev/null +++ b/docs/docbook/smbdotconf/security/directorymask.xml @@ -0,0 +1,47 @@ +<samba:parameter name="directory mask" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter is the octal modes which are + used when converting DOS modes to UNIX modes when creating UNIX + directories.</para> + + <para>When a directory is created, the necessary 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 <emphasis>not</emphasis> set + here will be removed from the modes set on a directory when it is + created.</para> + + <para>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.</para> + + <para>Following this Samba will bit-wise 'OR' the UNIX mode + created from this parameter with the value of the <link linkend="FORCEDIRECTORYMODE"> + <parameter moreinfo="none">force directory mode</parameter></link> parameter. + This parameter is set to 000 by default (i.e. no extra mode bits are added).</para> + + <para>Note that this parameter does not apply to permissions + set by Windows NT/2000 ACL editors. If the administrator wishes to enforce + a mask on access control lists also, they need to set the <link linkend="DIRECTORYSECURITYMASK"> + <parameter moreinfo="none">directory security mask</parameter></link>.</para> + + <para>See the <link linkend="FORCEDIRECTORYMODE"><parameter moreinfo="none">force + directory mode</parameter></link> parameter to cause particular mode + bits to always be set on created directories.</para> + + <para>See also the <link linkend="CREATEMODE"><parameter moreinfo="none">create mode + </parameter></link> parameter for masking mode bits on created files, + and the <link linkend="DIRECTORYSECURITYMASK"><parameter moreinfo="none">directory + security mask</parameter></link> parameter.</para> + + <para>Also refer to the <link linkend="INHERITPERMISSIONS"><parameter moreinfo="none"> + inherit permissions</parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">directory mask = 0755</command></para> + + <para>Example: <command moreinfo="none">directory mask = 0775</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/directorymode.xml b/docs/docbook/smbdotconf/security/directorymode.xml new file mode 100644 index 0000000000..3facac2bc1 --- /dev/null +++ b/docs/docbook/smbdotconf/security/directorymode.xml @@ -0,0 +1,8 @@ +<samba:parameter name="directory mode" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="DIRECTORYMASK"><parameter moreinfo="none"> + directory mask</parameter></link></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/directorysecuritymask.xml b/docs/docbook/smbdotconf/security/directorysecuritymask.xml new file mode 100644 index 0000000000..d5413d4578 --- /dev/null +++ b/docs/docbook/smbdotconf/security/directorysecuritymask.xml @@ -0,0 +1,36 @@ +<samba:parameter name="directory security mask" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls what UNIX permission bits + can be modified when a Windows NT client is manipulating the UNIX + permission on a directory using the native NT security dialog + box.</para> + + <para>This parameter is applied as a mask (AND'ed with) to + the changed permission bits, thus preventing any bits not in + this mask from being modified. Essentially, zero bits in this + mask may be treated as a set of bits the user is not allowed + to change.</para> + + <para>If not set explicitly this parameter is set to 0777 + meaning a user is allowed to modify all the user/group/world + permissions on a directory.</para> + + <para><emphasis>Note</emphasis> that users who can access the + Samba server through other means can easily bypass this restriction, + so it is primarily useful for standalone "appliance" systems. + Administrators of most normal systems will probably want to leave + it as the default of <constant>0777</constant>.</para> + + <para>See also the <link linkend="FORCEDIRECTORYSECURITYMODE"><parameter moreinfo="none"> + force directory security mode</parameter></link>, <link linkend="SECURITYMASK"> + <parameter moreinfo="none">security mask</parameter></link>, + <link linkend="FORCESECURITYMODE"><parameter moreinfo="none">force security mode + </parameter></link> parameters.</para> + + <para>Default: <command moreinfo="none">directory security mask = 0777</command></para> + + <para>Example: <command moreinfo="none">directory security mask = 0700</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/forcecreatemode.xml b/docs/docbook/smbdotconf/security/forcecreatemode.xml new file mode 100644 index 0000000000..66b29950d0 --- /dev/null +++ b/docs/docbook/smbdotconf/security/forcecreatemode.xml @@ -0,0 +1,28 @@ +<samba:parameter name="force create mode" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter specifies a set of UNIX mode bit + permissions that will <emphasis>always</emphasis> 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 or having its + permissions changed. The default for this parameter is (in octal) + 000. The modes in this parameter are bitwise 'OR'ed onto the file + mode after the mask set in the <parameter moreinfo="none">create mask</parameter> + parameter is applied.</para> + + <para>See also the parameter <link linkend="CREATEMASK"><parameter moreinfo="none">create + mask</parameter></link> for details on masking mode bits on files.</para> + + <para>See also the <link linkend="INHERITPERMISSIONS"><parameter moreinfo="none">inherit + permissions</parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">force create mode = 000</command></para> + + <para>Example: <command moreinfo="none">force create mode = 0755</command></para> + + <para>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'.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/forcedirectorymode.xml b/docs/docbook/smbdotconf/security/forcedirectorymode.xml new file mode 100644 index 0000000000..b417f08b24 --- /dev/null +++ b/docs/docbook/smbdotconf/security/forcedirectorymode.xml @@ -0,0 +1,29 @@ +<samba:parameter name="force directory mode" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter specifies a set of UNIX mode bit + permissions that will <emphasis>always</emphasis> 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 octal) 0000 which will not add any extra permission + bits to a created directory. This operation is done after the mode + mask in the parameter <parameter moreinfo="none">directory mask</parameter> is + applied.</para> + + <para>See also the parameter <link linkend="DIRECTORYMASK"><parameter moreinfo="none"> + directory mask</parameter></link> for details on masking mode bits + on created directories.</para> + + <para>See also the <link linkend="INHERITPERMISSIONS"><parameter moreinfo="none"> + inherit permissions</parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">force directory mode = 000</command></para> + + <para>Example: <command moreinfo="none">force directory mode = 0755</command></para> + + <para>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'.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/forcedirectorysecuritymode.xml b/docs/docbook/smbdotconf/security/forcedirectorysecuritymode.xml new file mode 100644 index 0000000000..8c35ccbf8a --- /dev/null +++ b/docs/docbook/smbdotconf/security/forcedirectorysecuritymode.xml @@ -0,0 +1,35 @@ +<samba:parameter name="force directory security mode" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls what UNIX permission bits + can be modified when a Windows NT client is manipulating the UNIX + permission on a directory using the native NT security dialog box.</para> + + <para>This parameter is applied as a mask (OR'ed with) to the + changed permission bits, thus forcing any bits in this mask that + the user may have modified to be on. Essentially, one bits in this + mask may be treated as a set of bits that, when modifying security + on a directory, the user has always set to be 'on'.</para> + + <para>If not set explicitly this parameter is 000, which + allows a user to modify all the user/group/world permissions on a + directory without restrictions.</para> + + <para><emphasis>Note</emphasis> that users who can access the + Samba server through other means can easily bypass this restriction, + so it is primarily useful for standalone "appliance" systems. + Administrators of most normal systems will probably want to leave + it set as 0000.</para> + + <para>See also the <link linkend="DIRECTORYSECURITYMASK"><parameter moreinfo="none"> + directory security mask</parameter></link>, <link linkend="SECURITYMASK"> + <parameter moreinfo="none">security mask</parameter></link>, + <link linkend="FORCESECURITYMODE"><parameter moreinfo="none">force security mode + </parameter></link> parameters.</para> + + <para>Default: <command moreinfo="none">force directory security mode = 0</command></para> + + <para>Example: <command moreinfo="none">force directory security mode = 700</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/forcegroup.xml b/docs/docbook/smbdotconf/security/forcegroup.xml new file mode 100644 index 0000000000..eafdfe8e23 --- /dev/null +++ b/docs/docbook/smbdotconf/security/forcegroup.xml @@ -0,0 +1,37 @@ +<samba:parameter name="force group" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This specifies a UNIX group name that will be + assigned as the default primary group for all users connecting + to this service. This is useful for sharing files by ensuring + that all access to files on service will use the named group for + their permissions checking. Thus, by assigning permissions for this + group to the files and directories within this service the Samba + administrator can restrict or allow sharing of these files.</para> + + <para>In Samba 2.0.5 and above this parameter has extended + functionality in the following way. If the group name listed here + has a '+' character prepended to it then the current user accessing + the share only has the primary group default assigned to this group + if they are already assigned as a member of that group. This allows + an administrator to decide that only users who are already in a + particular group will create files with group ownership set to that + group. This gives a finer granularity of ownership assignment. For + example, the setting <filename moreinfo="none">force group = +sys</filename> means + that only users who are already in group sys will have their default + primary group assigned to sys when accessing this Samba share. All + other users will retain their ordinary primary group.</para> + + <para>If the <link linkend="FORCEUSER"><parameter moreinfo="none">force user</parameter> + </link> parameter is also set the group specified in + <parameter moreinfo="none">force group</parameter> will override the primary group + set in <parameter moreinfo="none">force user</parameter>.</para> + + <para>See also <link linkend="FORCEUSER"><parameter moreinfo="none">force user</parameter></link>.</para> + + <para>Default: <emphasis>no forced group</emphasis></para> + + <para>Example: <command moreinfo="none">force group = agroup</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/forcesecuritymode.xml b/docs/docbook/smbdotconf/security/forcesecuritymode.xml new file mode 100644 index 0000000000..4151239f53 --- /dev/null +++ b/docs/docbook/smbdotconf/security/forcesecuritymode.xml @@ -0,0 +1,36 @@ +<samba:parameter name="force security mode" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls what UNIX permission + bits can be modified when a Windows NT client is manipulating + the UNIX permission on a file using the native NT security dialog + box.</para> + + <para>This parameter is applied as a mask (OR'ed with) to the + changed permission bits, thus forcing any bits in this mask that + the user may have modified to be on. Essentially, one bits in this + mask may be treated as a set of bits that, when modifying security + on a file, the user has always set to be 'on'.</para> + + <para>If not set explicitly this parameter is set to 0, + and allows a user to modify all the user/group/world permissions on a file, + with no restrictions.</para> + + <para><emphasis>Note</emphasis> that users who can access + the Samba server through other means can easily bypass this restriction, + so it is primarily useful for standalone "appliance" systems. + Administrators of most normal systems will probably want to leave + this set to 0000.</para> + + <para>See also the <link linkend="FORCEDIRECTORYSECURITYMODE"><parameter moreinfo="none"> + force directory security mode</parameter></link>, + <link linkend="DIRECTORYSECURITYMASK"><parameter moreinfo="none">directory security + mask</parameter></link>, <link linkend="SECURITYMASK"><parameter moreinfo="none"> + security mask</parameter></link> parameters.</para> + + <para>Default: <command moreinfo="none">force security mode = 0</command></para> + + <para>Example: <command moreinfo="none">force security mode = 700</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/forceuser.xml b/docs/docbook/smbdotconf/security/forceuser.xml new file mode 100644 index 0000000000..79c7aa3806 --- /dev/null +++ b/docs/docbook/smbdotconf/security/forceuser.xml @@ -0,0 +1,27 @@ +<samba:parameter name="force user" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This specifies a UNIX user name that will be + assigned as the default user for all users connecting to this service. + This is useful for sharing files. You should also use it carefully + as using it incorrectly can cause security problems.</para> + + <para>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. This can be very useful.</para> + + <para>In Samba 2.0.5 and above this parameter also causes the + primary group of the forced user to be used as the primary group + for all file activity. Prior to 2.0.5 the primary group was left + as the primary group of the connecting user (this was a bug).</para> + + <para>See also <link linkend="FORCEGROUP"><parameter moreinfo="none">force group</parameter></link></para> + + <para>Default: <emphasis>no forced user</emphasis></para> + + <para>Example: <command moreinfo="none">force user = auser</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/group.xml b/docs/docbook/smbdotconf/security/group.xml new file mode 100644 index 0000000000..453ca0f45b --- /dev/null +++ b/docs/docbook/smbdotconf/security/group.xml @@ -0,0 +1,9 @@ +<samba:parameter name="group" + context="S" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="FORCEGROUP"> + <parameter moreinfo="none">force group</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/guestaccount.xml b/docs/docbook/smbdotconf/security/guestaccount.xml new file mode 100644 index 0000000000..9db3b6362d --- /dev/null +++ b/docs/docbook/smbdotconf/security/guestaccount.xml @@ -0,0 +1,31 @@ +<samba:parameter name="guest account" + context="G,S" + basic="1" advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a username which will be used for access + to services which are specified as <link linkend="GUESTOK"><parameter moreinfo="none"> + guest ok</parameter></link> (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. The user account "ftp" is often a good choice + for this parameter. If a username is specified in a given service, + the specified username overrides this one. + </para> + + <para>One some systems the default guest 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 + <command moreinfo="none">su -</command> command) and trying to print using the + system print command such as <command moreinfo="none">lpr(1)</command> or <command moreinfo="none"> + lp(1)</command>.</para> + + <para>This parameter does not accept % macros, because + many parts of the system require this value to be + constant for correct operation.</para> + + <para>Default: <emphasis>specified at compile time, usually "nobody"</emphasis></para> + + <para>Example: <command moreinfo="none">guest account = ftp</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/guestok.xml b/docs/docbook/smbdotconf/security/guestok.xml new file mode 100644 index 0000000000..eef1801dc3 --- /dev/null +++ b/docs/docbook/smbdotconf/security/guestok.xml @@ -0,0 +1,21 @@ +<samba:parameter name="guest ok" + context="S" + basic="1" advanced="1" print="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>If this parameter is <constant>yes</constant> for + a service, then no password is required to connect to the service. + Privileges will be those of the <link linkend="GUESTACCOUNT"><parameter moreinfo="none"> + guest account</parameter></link>.</para> + + <para>This paramater nullifies the benifits of setting + <link linkend="RESTRICTANONYMOUS"><parameter moreinfo="none">restrict + anonymous</parameter></link> = 2</para> + + <para>See the section below on <link linkend="SECURITY"><parameter moreinfo="none"> + security</parameter></link> for more information about this option. + </para> + + <para>Default: <command moreinfo="none">guest ok = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/guestonly.xml b/docs/docbook/smbdotconf/security/guestonly.xml new file mode 100644 index 0000000000..f116a5f22c --- /dev/null +++ b/docs/docbook/smbdotconf/security/guestonly.xml @@ -0,0 +1,16 @@ +<samba:parameter name="guest only" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>If this parameter is <constant>yes</constant> for + a service, then only guest connections to the service are permitted. + This parameter will have no effect if <link linkend="GUESTOK"> + <parameter moreinfo="none">guest ok</parameter></link> is not set for the service.</para> + + <para>See the section below on <link linkend="SECURITY"><parameter moreinfo="none"> + security</parameter></link> for more information about this option. + </para> + + <para>Default: <command moreinfo="none">guest only = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/hostsallow.xml b/docs/docbook/smbdotconf/security/hostsallow.xml new file mode 100644 index 0000000000..95aa7ee516 --- /dev/null +++ b/docs/docbook/smbdotconf/security/hostsallow.xml @@ -0,0 +1,62 @@ +<samba:parameter name="hosts allow" + context="S" + basic="1" advanced="1" print="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>A synonym for this parameter is <parameter moreinfo="none">allow + hosts</parameter>.</para> + + <para>This parameter is a comma, space, or tab delimited + set of hosts which are permitted to access a service.</para> + + <para>If specified in the [global] section then it will + apply to all services, regardless of whether the individual + service has a different setting.</para> + + <para>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 <command moreinfo="none">allow hosts = 150.203.5. + </command>. The full syntax of the list is described in the man + page <filename moreinfo="none">hosts_access(5)</filename>. Note that this man + page may not be present on your system, so a brief description will + be given here also.</para> + + <para>Note that the localhost address 127.0.0.1 will always + be allowed access unless specifically denied by a <link linkend="HOSTSDENY"> + <parameter moreinfo="none">hosts deny</parameter></link> option.</para> + + <para>You can also specify hosts by network/netmask pairs and + by netgroup names if your system supports netgroups. The + <emphasis>EXCEPT</emphasis> keyword can also be used to limit a + wildcard list. The following examples may provide some help:</para> + + <para>Example 1: allow all IPs in 150.203.*.*; except one</para> + + <para><command moreinfo="none">hosts allow = 150.203. EXCEPT 150.203.6.66</command></para> + + <para>Example 2: allow hosts that match the given network/netmask</para> + + <para><command moreinfo="none">hosts allow = 150.203.15.0/255.255.255.0</command></para> + + <para>Example 3: allow a couple of hosts</para> + + <para><command moreinfo="none">hosts allow = lapland, arvidsjaur</command></para> + + <para>Example 4: allow only hosts in NIS netgroup "foonet", but + deny access from one particular host</para> + + <para><command moreinfo="none">hosts allow = @foonet</command></para> + + <para><command moreinfo="none">hosts deny = pirate</command></para> + + <note><para>Note that access still requires suitable user-level passwords.</para></note> + + <para>See <citerefentry><refentrytitle>testparm</refentrytitle> + <manvolnum>1</manvolnum></citerefentry> for a way of testing your host access + to see if it does what you expect.</para> + + <para>Default: <emphasis>none (i.e., all hosts permitted access)</emphasis></para> + + <para>Example: <command moreinfo="none">allow hosts = 150.203.5. myhost.mynet.edu.au</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/hostsdeny.xml b/docs/docbook/smbdotconf/security/hostsdeny.xml new file mode 100644 index 0000000000..e4b47051fa --- /dev/null +++ b/docs/docbook/smbdotconf/security/hostsdeny.xml @@ -0,0 +1,16 @@ +<samba:parameter name="hosts deny" + context="S" + basic="1" advanced="1" print="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The opposite of <parameter moreinfo="none">hosts allow</parameter> + - hosts listed here are <emphasis>NOT</emphasis> permitted access to + services unless the specific services have their own lists to override + this one. Where the lists conflict, the <parameter moreinfo="none">allow</parameter> + list takes precedence.</para> + + <para>Default: <emphasis>none (i.e., no hosts specifically excluded)</emphasis></para> + + <para>Example: <command moreinfo="none">hosts deny = 150.203.4. badhost.mynet.edu.au</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/hostsequiv.xml b/docs/docbook/smbdotconf/security/hostsequiv.xml new file mode 100644 index 0000000000..873053be28 --- /dev/null +++ b/docs/docbook/smbdotconf/security/hostsequiv.xml @@ -0,0 +1,29 @@ +<samba:parameter name="hosts equiv" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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. + </para> + + <para>This is not be confused with <link linkend="HOSTSALLOW"> + <parameter moreinfo="none">hosts allow</parameter></link> which is about hosts + access to services and is more useful for guest services. <parameter moreinfo="none"> + hosts equiv</parameter> may be useful for NT clients which will + not supply passwords to Samba.</para> + + <note><para>The use of <parameter moreinfo="none">hosts equiv + </parameter> 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 + <parameter moreinfo="none">hosts equiv</parameter> option be only used if you really + know what you are doing, or perhaps on a home network where you trust + your spouse and kids. And only if you <emphasis>really</emphasis> trust + them :-).</para></note> + + <para>Default: <emphasis>no host equivalences</emphasis></para> + <para>Example: <command moreinfo="none">hosts equiv = /etc/hosts.equiv</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/inheritacls.xml b/docs/docbook/smbdotconf/security/inheritacls.xml new file mode 100644 index 0000000000..6fcfdc19ce --- /dev/null +++ b/docs/docbook/smbdotconf/security/inheritacls.xml @@ -0,0 +1,14 @@ +<samba:parameter name="inherit acls" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter can be used to ensure that if default acls + exist on parent directories, they are always honored when creating a + subdirectory. The default behavior is to use the mode specified when + creating the directory. Enabling this option sets the mode to 0777, + thus guaranteeing that default directory acls are propagated. + </para> + + <para>Default: <command moreinfo="none">inherit acls = no</command> +</para></listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/inheritpermissions.xml b/docs/docbook/smbdotconf/security/inheritpermissions.xml new file mode 100644 index 0000000000..aacf169863 --- /dev/null +++ b/docs/docbook/smbdotconf/security/inheritpermissions.xml @@ -0,0 +1,40 @@ +<samba:parameter name="inherit permissions" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The permissions on new files and directories + are normally governed by <link linkend="CREATEMASK"><parameter moreinfo="none"> + create mask</parameter></link>, <link linkend="DIRECTORYMASK"> + <parameter moreinfo="none">directory mask</parameter></link>, <link linkend="FORCECREATEMODE"> + <parameter moreinfo="none">force create mode</parameter> + </link> and <link linkend="FORCEDIRECTORYMODE"><parameter moreinfo="none">force + directory mode</parameter></link> but the boolean inherit + permissions parameter overrides this.</para> + + <para>New directories inherit the mode of the parent directory, + including bits such as setgid.</para> + + <para>New files inherit their read/write bits from the parent + directory. Their execute bits continue to be determined by + <link linkend="MAPARCHIVE"><parameter moreinfo="none">map archive</parameter> + </link>, <link linkend="MAPHIDDEN"><parameter moreinfo="none">map hidden</parameter> + </link> and <link linkend="MAPSYSTEM"><parameter moreinfo="none">map system</parameter> + </link> as usual.</para> + + <para>Note that the setuid bit is <emphasis>never</emphasis> set via + inheritance (the code explicitly prohibits this).</para> + + <para>This can be particularly useful on large systems with + many users, perhaps several thousand, to allow a single [homes] + share to be used flexibly by each user.</para> + + <para>See also <link linkend="CREATEMASK"><parameter moreinfo="none">create mask + </parameter></link>, <link linkend="DIRECTORYMASK"><parameter moreinfo="none"> + directory mask</parameter></link>, <link linkend="FORCECREATEMODE"> + <parameter moreinfo="none">force create mode</parameter></link> and <link linkend="FORCEDIRECTORYMODE"> + <parameter moreinfo="none">force directory mode</parameter> + </link>.</para> + + <para>Default: <command moreinfo="none">inherit permissions = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/invalidusers.xml b/docs/docbook/smbdotconf/security/invalidusers.xml new file mode 100644 index 0000000000..f9d5d218e8 --- /dev/null +++ b/docs/docbook/smbdotconf/security/invalidusers.xml @@ -0,0 +1,35 @@ +<samba:parameter name="invalid users" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a list of users that should not be allowed + to login to this service. This is really a <emphasis>paranoid</emphasis> + check to absolutely ensure an improper setting does not breach + your security.</para> + + <para>A name starting with a '@' is interpreted as an NIS + netgroup first (if your system supports NIS), and then as a UNIX + group if the name was not found in the NIS netgroup database.</para> + + <para>A name starting with '+' is interpreted only + by looking in the UNIX group database. A name starting with + '&' is interpreted only by looking in the NIS netgroup database + (this requires NIS to be working on your system). The characters + '+' and '&' may be used at the start of the name in either order + so the value <parameter moreinfo="none">+&group</parameter> means check the + UNIX group database, followed by the NIS netgroup database, and + the value <parameter moreinfo="none">&+group</parameter> means check the NIS + netgroup database, followed by the UNIX group database (the + same as the '@' prefix).</para> + + <para>The current servicename is substituted for <parameter moreinfo="none">%S</parameter>. + This is useful in the [homes] section.</para> + + <para>See also <link linkend="VALIDUSERS"><parameter moreinfo="none">valid users + </parameter></link>.</para> + + <para>Default: <emphasis>no invalid users</emphasis></para> + + <para>Example: <command moreinfo="none">invalid users = root fred admin @wheel</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/lanmanauth.xml b/docs/docbook/smbdotconf/security/lanmanauth.xml new file mode 100644 index 0000000000..e293242472 --- /dev/null +++ b/docs/docbook/smbdotconf/security/lanmanauth.xml @@ -0,0 +1,14 @@ +<samba:parameter name="lanman auth" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter determines whether or not <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will attempt to authenticate users + using the LANMAN password hash. If disabled, only clients which support NT + password hashes (e.g. Windows NT/2000 clients, smbclient, etc... but not + Windows 95/98 or the MS DOS network client) will be able to connect to the Samba host.</para> + + <para>Default : <command moreinfo="none">lanman auth = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/maptoguest.xml b/docs/docbook/smbdotconf/security/maptoguest.xml new file mode 100644 index 0000000000..4f66319928 --- /dev/null +++ b/docs/docbook/smbdotconf/security/maptoguest.xml @@ -0,0 +1,62 @@ +<samba:parameter name="map to guest" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter is only useful in <link linkend="SECURITY"> + security</link> modes other than <parameter moreinfo="none">security = share</parameter> + - i.e. <constant>user</constant>, <constant>server</constant>, + and <constant>domain</constant>.</para> + + <para>This parameter can take three different values, which tell + <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> what to do with user + login requests that don't match a valid UNIX user in some way.</para> + + <para>The three settings are :</para> + + <itemizedlist> + <listitem> + <para><constant>Never</constant> - Means user login + requests with an invalid password are rejected. This is the + default.</para> + </listitem> + + <listitem> + <para><constant>Bad User</constant> - Means user + logins with an invalid password are rejected, unless the username + does not exist, in which case it is treated as a guest login and + mapped into the <link linkend="GUESTACCOUNT"><parameter moreinfo="none"> + guest account</parameter></link>.</para> + </listitem> + + <listitem> + <para><constant>Bad Password</constant> - Means user logins + with an invalid password are treated as a guest login and mapped + into the <link linkend="GUESTACCOUNT">guest account</link>. Note that + this can cause problems as it means that any user incorrectly typing + their password will be silently logged on as "guest" - and + will not know the reason they cannot access files they think + they should - there will have been no message given to them + that they got their password wrong. Helpdesk services will + <emphasis>hate</emphasis> you if you set the <parameter moreinfo="none">map to + guest</parameter> parameter this way :-).</para> + </listitem> + </itemizedlist> + + <para>Note that this parameter is needed to set up "Guest" + share services when using <parameter moreinfo="none">security</parameter> modes other than + share. This is because in these modes the name of the resource being + requested is <emphasis>not</emphasis> sent to the server until after + the server has successfully authenticated the client so the server + cannot make authentication decisions at the correct time (connection + to the share) for "Guest" shares.</para> + + <para>For people familiar with the older Samba releases, this + parameter maps to the old compile-time setting of the <constant> + GUEST_SESSSETUP</constant> value in local.h.</para> + + <para>Default: <command moreinfo="none">map to guest = Never</command></para> + <para>Example: <command moreinfo="none">map to guest = Bad User</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/minpasswdlength.xml b/docs/docbook/smbdotconf/security/minpasswdlength.xml new file mode 100644 index 0000000000..d7ecc3e21b --- /dev/null +++ b/docs/docbook/smbdotconf/security/minpasswdlength.xml @@ -0,0 +1,10 @@ +<samba:parameter name="min passwd length" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="MINPASSWORDLENGTH"> + <parameter moreinfo="none">min password length</parameter></link>. + </para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/nonunixaccountrange.xml b/docs/docbook/smbdotconf/security/nonunixaccountrange.xml new file mode 100644 index 0000000000..4004af2d94 --- /dev/null +++ b/docs/docbook/smbdotconf/security/nonunixaccountrange.xml @@ -0,0 +1,25 @@ +<samba:parameter name="non unix account range" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The non unix account range parameter specifies + the range of 'user ids' that are allocated by the various 'non unix + account' passdb backends. These backends allow + the storage of passwords for users who don't exist in /etc/passwd. + This is most often used for machine account creation. + This range of ids should have no existing local or NIS users within + it as strange conflicts can occur otherwise.</para> + + <note> + <para>These userids never appear on the system and Samba will never + 'become' these users. They are used only to ensure that the algorithmic + RID mapping does not conflict with normal users. + </para> + </note> + + <para>Default: <command moreinfo="none">non unix account range = <empty string></command></para> + + <para>Example: <command moreinfo="none">non unix account range = 10000-20000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/ntlmauth.xml b/docs/docbook/smbdotconf/security/ntlmauth.xml new file mode 100644 index 0000000000..b0b3179ab7 --- /dev/null +++ b/docs/docbook/smbdotconf/security/ntlmauth.xml @@ -0,0 +1,15 @@ +<samba:parameter name="ntlm auth" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter determines whether or not <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> will attempt to authenticate users using the NTLM password hash. + If disabled, only the lanman password hashes will be used.</para> + + <para>Please note that at least this option or <command moreinfo="none">lanman auth</command> should + be enabled in order to be able to log in.</para> + + <para>Default : <command moreinfo="none">ntlm auth = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/nullpasswords.xml b/docs/docbook/smbdotconf/security/nullpasswords.xml new file mode 100644 index 0000000000..944a307eb7 --- /dev/null +++ b/docs/docbook/smbdotconf/security/nullpasswords.xml @@ -0,0 +1,13 @@ +<samba:parameter name="null passwords" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Allow or disallow client access to accounts that have null passwords. </para> + + <para>See also <citerefentry><refentrytitle>smbpasswd</refentrytitle> + <manvolnum>5</manvolnum></citerefentry>.</para> + + <para>Default: <command moreinfo="none">null passwords = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/obeypamrestrictions.xml b/docs/docbook/smbdotconf/security/obeypamrestrictions.xml new file mode 100644 index 0000000000..42d6b5cc43 --- /dev/null +++ b/docs/docbook/smbdotconf/security/obeypamrestrictions.xml @@ -0,0 +1,19 @@ +<samba:parameter name="obey pam restrictions" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>When Samba 3.0 is configured to enable PAM support + (i.e. --with-pam), this parameter will control whether or not Samba + should obey PAM's account and session management directives. The + default behavior is to use PAM for clear text authentication only + and to ignore any account or session management. Note that Samba + always ignores PAM for authentication in the case of <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypt passwords = yes</parameter></link>. The reason + is that PAM modules cannot support the challenge/response + authentication mechanism needed in the presence of SMB password encryption. + </para> + + <para>Default: <command moreinfo="none">obey pam restrictions = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/onlyguest.xml b/docs/docbook/smbdotconf/security/onlyguest.xml new file mode 100644 index 0000000000..756c682ab3 --- /dev/null +++ b/docs/docbook/smbdotconf/security/onlyguest.xml @@ -0,0 +1,8 @@ +<samba:parameter name="only guest" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>A synonym for <link linkend="GUESTONLY"><parameter moreinfo="none"> + guest only</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/onlyuser.xml b/docs/docbook/smbdotconf/security/onlyuser.xml new file mode 100644 index 0000000000..9975023ecb --- /dev/null +++ b/docs/docbook/smbdotconf/security/onlyuser.xml @@ -0,0 +1,26 @@ +<samba:parameter name="only user" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a boolean option that controls whether + connections with usernames not in the <parameter moreinfo="none">user</parameter> + list will be allowed. By default this option is disabled so that a + client can supply a username to be used by the server. Enabling + this parameter will force the server to only use the login + names from the <parameter moreinfo="none">user</parameter> list and is only really + useful in <link linkend="SECURITYEQUALSSHARE">share level</link> + security.</para> + + <para>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 <command moreinfo="none">user = + %S</command> which means your <parameter moreinfo="none">user</parameter> list + will be just the service name, which for home directories is the + name of the user.</para> + + <para>See also the <link linkend="USER"><parameter moreinfo="none">user</parameter> + </link> parameter.</para> + + <para>Default: <command moreinfo="none">only user = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/pampasswordchange.xml b/docs/docbook/smbdotconf/security/pampasswordchange.xml new file mode 100644 index 0000000000..5eb60e5270 --- /dev/null +++ b/docs/docbook/smbdotconf/security/pampasswordchange.xml @@ -0,0 +1,17 @@ +<samba:parameter name="pam password change" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>With the addition of better PAM support in Samba 2.2, + this parameter, it is possible to use PAM's password change control + flag for Samba. If enabled, then PAM will be used for password + changes when requested by an SMB client instead of the program listed in + <link linkend="PASSWDPROGRAM"><parameter moreinfo="none">passwd program</parameter></link>. + It should be possible to enable this without changing your + <link linkend="PASSWDCHAT"><parameter moreinfo="none">passwd chat</parameter></link> + parameter for most setups.</para> + + <para>Default: <command moreinfo="none">pam password change = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/passwdchat.xml b/docs/docbook/smbdotconf/security/passwdchat.xml new file mode 100644 index 0000000000..fcefd8f8df --- /dev/null +++ b/docs/docbook/smbdotconf/security/passwdchat.xml @@ -0,0 +1,62 @@ +<samba:parameter name="passwd chat" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This string controls the <emphasis>"chat"</emphasis> + conversation that takes places between <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> and the local password changing + program to change the user's password. The string describes a + sequence of response-receive pairs that <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> uses to determine what to send to the + <link linkend="PASSWDPROGRAM"><parameter moreinfo="none">passwd program</parameter> + </link> and what to expect back. If the expected output is not + received then the password is not changed.</para> + + <para>This chat sequence is often quite site specific, depending + on what local methods are used for password control (such as NIS + etc).</para> + + <para>Note that this parameter only is only used if the <link + linkend="UNIXPASSWORDSYNC"> <parameter moreinfo="none">unix password sync</parameter> + </link> parameter is set to <constant>yes</constant>. This sequence is + then called <emphasis>AS ROOT</emphasis> when the SMB password in the + smbpasswd file is being changed, without access to the old password + cleartext. This means that root must be able to reset the user's password without + knowing the text of the previous password. In the presence of + NIS/YP, this means that the <link linkend="PASSWDPROGRAM">passwd program</link> must + be executed on the NIS master. + </para> + + + <para>The string can contain the macro <parameter moreinfo="none">%n</parameter> which is substituted + for the new password. The chat sequence can also contain the standard + macros <constant>\\n</constant>, <constant>\\r</constant>, <constant>\\t</constant> and <constant>\\s</constant> to + give line-feed, carriage-return, tab and space. The chat sequence string can also contain + a '*' which matches any sequence of characters. Double quotes can be used to collect strings with spaces + in them into a single string.</para> + + <para>If the send string in any part of the chat sequence is a full + stop ".", then no string is sent. Similarly, if the + expect string is a full stop then no string is expected.</para> + + <para>If the <link linkend="PAMPASSWORDCHANGE"><parameter moreinfo="none">pam + password change</parameter></link> parameter is set to <constant>yes</constant>, the chat pairs + may be matched in any order, and success is determined by the PAM result, + not any particular output. The \n macro is ignored for PAM conversions. + </para> + + <para>See also <link linkend="UNIXPASSWORDSYNC"><parameter moreinfo="none">unix password + sync</parameter></link>, <link linkend="PASSWDPROGRAM"><parameter moreinfo="none"> + passwd program</parameter></link> ,<link linkend="PASSWDCHATDEBUG"> + <parameter moreinfo="none">passwd chat debug</parameter></link> and <link linkend="PAMPASSWORDCHANGE"> + <parameter moreinfo="none">pam password change</parameter></link>.</para> + + <para>Default: <command moreinfo="none">passwd chat = *new*password* %n\\n + *new*password* %n\\n *changed*</command></para> + + <para>Example: <command moreinfo="none">passwd chat = "*Enter OLD password*" %o\\n + "*Enter NEW password*" %n\\n "*Reenter NEW password*" %n\\n + "*Password changed*"</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/passwdchatdebug.xml b/docs/docbook/smbdotconf/security/passwdchatdebug.xml new file mode 100644 index 0000000000..2d731b5d11 --- /dev/null +++ b/docs/docbook/smbdotconf/security/passwdchatdebug.xml @@ -0,0 +1,27 @@ +<samba:parameter name="passwd chat debug" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean specifies if the passwd chat script + parameter is run in <emphasis>debug</emphasis> mode. In this mode the + strings passed to and received from the passwd chat are printed + in the <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> log with a + <link linkend="DEBUGLEVEL"><parameter moreinfo="none">debug level</parameter></link> + of 100. This is a dangerous option as it will allow plaintext passwords + to be seen in the <command moreinfo="none">smbd</command> log. It is available to help + Samba admins debug their <parameter moreinfo="none">passwd chat</parameter> scripts + when calling the <parameter moreinfo="none">passwd program</parameter> and should + be turned off after this has been done. This option has no effect if the + <link linkend="PAMPASSWORDCHANGE"><parameter moreinfo="none">pam password change</parameter></link> + paramter is set. This parameter is off by default.</para> + + <para>See also <link linkend="PASSWDCHAT"><parameter moreinfo="none">passwd chat</parameter> + </link>, <link linkend="PAMPASSWORDCHANGE"><parameter moreinfo="none">pam password change</parameter> + </link>, <link linkend="PASSWDPROGRAM"><parameter moreinfo="none">passwd program</parameter> + </link>.</para> + + <para>Default: <command moreinfo="none">passwd chat debug = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/passwdprogram.xml b/docs/docbook/smbdotconf/security/passwdprogram.xml new file mode 100644 index 0000000000..dbcc261ce4 --- /dev/null +++ b/docs/docbook/smbdotconf/security/passwdprogram.xml @@ -0,0 +1,39 @@ +<samba:parameter name="passwd program" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The name of a program that can be used to set + UNIX user passwords. Any occurrences of <parameter moreinfo="none">%u</parameter> + will be replaced with the user name. The user name is checked for + existence before calling the password changing program.</para> + + <para>Also note that many passwd programs insist in <emphasis>reasonable + </emphasis> 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.</para> + + <para><emphasis>Note</emphasis> that if the <parameter moreinfo="none">unix + password sync</parameter> parameter is set to <constant>yes + </constant> then this program is called <emphasis>AS ROOT</emphasis> + before the SMB password in the <ulink url="smbpasswd.5.html"><citerefentry> + <refentrytitle>smbpasswd</refentrytitle><manvolnum>5</manvolnum></citerefentry> + </ulink> file is changed. If this UNIX password change fails, then + <command moreinfo="none">smbd</command> will fail to change the SMB password also + (this is by design).</para> + + <para>If the <parameter moreinfo="none">unix password sync</parameter> parameter + is set this parameter <emphasis>MUST USE ABSOLUTE PATHS</emphasis> + for <emphasis>ALL</emphasis> programs called, and must be examined + for security implications. Note that by default <parameter moreinfo="none">unix + password sync</parameter> is set to <constant>no</constant>.</para> + + <para>See also <link linkend="UNIXPASSWORDSYNC"><parameter moreinfo="none">unix + password sync</parameter></link>.</para> + + <para>Default: <command moreinfo="none">passwd program = /bin/passwd</command></para> + + <para>Example: <command moreinfo="none">passwd program = /sbin/npasswd %u</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/passwordlevel.xml b/docs/docbook/smbdotconf/security/passwordlevel.xml new file mode 100644 index 0000000000..28b9999731 --- /dev/null +++ b/docs/docbook/smbdotconf/security/passwordlevel.xml @@ -0,0 +1,44 @@ +<samba:parameter name="password level" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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! Another problem child is the Windows 95/98 + family of operating systems. These clients upper case clear + text passwords even when NT LM 0.12 selected by the protocol + negotiation request/response.</para> + + <para>This parameter defines the maximum number of characters + that may be upper case in passwords.</para> + + <para>For example, say the password given was "FRED". If <parameter moreinfo="none"> + password level</parameter> is set to 1, the following combinations + would be tried if "FRED" failed:</para> + + <para>"Fred", "fred", "fRed", "frEd","freD"</para> + + <para>If <parameter moreinfo="none">password level</parameter> was set to 2, + the following combinations would also be tried: </para> + + <para>"FRed", "FrEd", "FreD", "fREd", "fReD", "frED", ..</para> + + <para>And so on.</para> + + <para>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.</para> + + <para>A value of zero will cause only two attempts to be + made - the password as is and the password in all-lower case.</para> + + <para>Default: <command moreinfo="none">password level = 0</command></para> + + <para>Example: <command moreinfo="none">password level = 4</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/passwordserver.xml b/docs/docbook/smbdotconf/security/passwordserver.xml new file mode 100644 index 0000000000..e40ff32b75 --- /dev/null +++ b/docs/docbook/smbdotconf/security/passwordserver.xml @@ -0,0 +1,98 @@ +<samba:parameter name="password server" + context="G" + advanced="1" wizard="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>By specifying the name of another SMB server (such + as a WinNT box) with this option, and using <command moreinfo="none">security = domain + </command> or <command moreinfo="none">security = server</command> you can get Samba + to do all its username/password validation via a remote server.</para> + + <para>This option 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 the lmhosts file which is stored in the same directory + as the <filename moreinfo="none">smb.conf</filename> file.</para> + + <para>The name of the password server is looked up using the + parameter <link linkend="NAMERESOLVEORDER"><parameter moreinfo="none">name + resolve order</parameter></link> and so may resolved + by any method and order described in that parameter.</para> + + <para>The password server must be a machine capable of using + the "LM1.2X002" or the "NT LM 0.12" protocol, and it must be in + user level security mode.</para> + + <note><para>Using a password server means your UNIX box (running + Samba) is only as secure as your password server. <emphasis>DO NOT + CHOOSE A PASSWORD SERVER THAT YOU DON'T COMPLETELY TRUST</emphasis>. + </para></note> + + <para>Never point a Samba server at itself for password serving. + This will cause a loop and could lock up your Samba server!</para> + + <para>The name of the password server takes the standard + substitutions, but probably the only useful one is <parameter moreinfo="none">%m + </parameter>, 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 had better restrict them with hosts allow!</para> + + <para>If the <parameter moreinfo="none">security</parameter> parameter is set to + <constant>domain</constant>, then the list of machines in this + option must be a list of Primary or Backup Domain controllers for the + Domain or the character '*', as the Samba server is effectively + in that domain, and will use cryptographically authenticated RPC calls + to authenticate the user logging on. The advantage of using <command moreinfo="none"> + security = domain</command> is that if you list several hosts in the + <parameter moreinfo="none">password server</parameter> option then <command moreinfo="none">smbd + </command> will try each in turn till it finds one that responds. This + is useful in case your primary server goes down.</para> + + <para>If the <parameter moreinfo="none">password server</parameter> option is set + to the character '*', then Samba will attempt to auto-locate the + Primary or Backup Domain controllers to authenticate against by + doing a query for the name <constant>WORKGROUP<1C></constant> + and then contacting each server returned in the list of IP + addresses from the name resolution source. </para> + + <para>If the list of servers contains both names and the '*' + character, the list is treated as a list of preferred + domain controllers, but an auto lookup of all remaining DC's + will be added to the list as well. Samba will not attempt to optimize + this list by locating the closest DC.</para> + + <para>If the <parameter moreinfo="none">security</parameter> parameter is + set to <constant>server</constant>, then there are different + restrictions that <command moreinfo="none">security = domain</command> doesn't + suffer from:</para> + + <itemizedlist> + <listitem> + <para>You may list several password servers in + the <parameter moreinfo="none">password server</parameter> parameter, however if an + <command moreinfo="none">smbd</command> makes a connection to a password server, + and then the password server fails, no more users will be able + to be authenticated from this <command moreinfo="none">smbd</command>. This is a + restriction of the SMB/CIFS protocol when in <command moreinfo="none">security = server + </command> mode and cannot be fixed in Samba.</para> + </listitem> + + <listitem> + <para>If you are using a Windows NT server as your + password server then you will have to ensure that your users + are able to login from the Samba server, as when in <command moreinfo="none"> + security = server</command> mode the network logon will appear to + come from there rather than from the users workstation.</para> + </listitem> + </itemizedlist> + + <para>See also the <link linkend="SECURITY"><parameter moreinfo="none">security + </parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">password server = <empty string></command></para> + + <para>Example: <command moreinfo="none">password server = NT-PDC, NT-BDC1, NT-BDC2, *</command></para> + + <para>Example: <command moreinfo="none">password server = *</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/printeradmin.xml b/docs/docbook/smbdotconf/security/printeradmin.xml new file mode 100644 index 0000000000..c0640ea188 --- /dev/null +++ b/docs/docbook/smbdotconf/security/printeradmin.xml @@ -0,0 +1,15 @@ +<samba:parameter name="printer admin" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a list of users that can do anything to + printers via the remote administration interfaces offered by MS-RPC + (usually using a NT workstation). Note that the root user always + has admin rights.</para> + + <para>Default: <command moreinfo="none">printer admin = <empty string></command></para> + + <para>Example: <command moreinfo="none">printer admin = admin, @staff</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/privatedir.xml b/docs/docbook/smbdotconf/security/privatedir.xml new file mode 100644 index 0000000000..1fc7eb0b36 --- /dev/null +++ b/docs/docbook/smbdotconf/security/privatedir.xml @@ -0,0 +1,13 @@ +<samba:parameter name="private dir" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameters defines the directory + smbd will use for storing such files as <filename moreinfo="none">smbpasswd</filename> + and <filename moreinfo="none">secrets.tdb</filename>. + </para> + + <para>Default :<command moreinfo="none">private dir = ${prefix}/private</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/public.xml b/docs/docbook/smbdotconf/security/public.xml new file mode 100644 index 0000000000..a9e942811e --- /dev/null +++ b/docs/docbook/smbdotconf/security/public.xml @@ -0,0 +1,9 @@ +<samba:parameter name="public" + context="S" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="GUESTOK"><parameter moreinfo="none">guest + ok</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/readlist.xml b/docs/docbook/smbdotconf/security/readlist.xml new file mode 100644 index 0000000000..41a97e5ffc --- /dev/null +++ b/docs/docbook/smbdotconf/security/readlist.xml @@ -0,0 +1,22 @@ +<samba:parameter name="read list" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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 <link linkend="READONLY"> + <parameter moreinfo="none">read only</parameter></link> + option is set to. The list can include group names using the + syntax described in the <link linkend="INVALIDUSERS"><parameter moreinfo="none"> + invalid users</parameter></link> parameter.</para> + + <para>See also the <link linkend="WRITELIST"><parameter moreinfo="none"> + write list</parameter></link> parameter and the <link linkend="INVALIDUSERS"> + <parameter moreinfo="none">invalid users</parameter> + </link> parameter.</para> + + <para>Default: <command moreinfo="none">read list = <empty string></command></para> + + <para>Example: <command moreinfo="none">read list = mary, @students</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/readonly.xml b/docs/docbook/smbdotconf/security/readonly.xml new file mode 100644 index 0000000000..e71301c3e5 --- /dev/null +++ b/docs/docbook/smbdotconf/security/readonly.xml @@ -0,0 +1,19 @@ +<samba:parameter name="read only" + context="S" + basic="1" advanced="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>An inverted synonym is <link linkend="WRITEABLE"> + <parameter moreinfo="none">writeable</parameter></link>.</para> + + <para>If this parameter is <constant>yes</constant>, then users + of a service may not create or modify files in the service's + directory.</para> + + <para>Note that a printable service (<command moreinfo="none">printable = yes</command>) + will <emphasis>ALWAYS</emphasis> allow writing to the directory + (user privileges permitting), but only via spooling operations.</para> + + <para>Default: <command moreinfo="none">read only = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/root.xml b/docs/docbook/smbdotconf/security/root.xml new file mode 100644 index 0000000000..1199d54099 --- /dev/null +++ b/docs/docbook/smbdotconf/security/root.xml @@ -0,0 +1,10 @@ +<samba:parameter name="root" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="ROOTDIRECTORY"> + <parameter moreinfo="none">root directory"</parameter></link>. + </para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/rootdir.xml b/docs/docbook/smbdotconf/security/rootdir.xml new file mode 100644 index 0000000000..e4e5f0e509 --- /dev/null +++ b/docs/docbook/smbdotconf/security/rootdir.xml @@ -0,0 +1,10 @@ +<samba:parameter name="root dir" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="ROOTDIRECTORY"> + <parameter moreinfo="none">root directory"</parameter></link>. + </para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/rootdirectory.xml b/docs/docbook/smbdotconf/security/rootdirectory.xml new file mode 100644 index 0000000000..9c3e9cfad2 --- /dev/null +++ b/docs/docbook/smbdotconf/security/rootdirectory.xml @@ -0,0 +1,34 @@ +<samba:parameter name="root directory" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The server will <command moreinfo="none">chroot()</command> (i.e. + Change its root directory) 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 <link linkend="WIDELINKS"> + <parameter moreinfo="none">wide links</parameter></link> + parameter). + </para> + + <para>Adding a <parameter moreinfo="none">root directory</parameter> 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 <parameter moreinfo="none">root directory</parameter> + option, <emphasis>including</emphasis> 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 <parameter moreinfo="none">root directory</parameter> tree. In particular + you will need to mirror <filename moreinfo="none">/etc/passwd</filename> (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.</para> + + <para>Default: <command moreinfo="none">root directory = /</command></para> + + <para>Example: <command moreinfo="none">root directory = /homes/smb</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/security.xml b/docs/docbook/smbdotconf/security/security.xml new file mode 100644 index 0000000000..68c5f2cdd2 --- /dev/null +++ b/docs/docbook/smbdotconf/security/security.xml @@ -0,0 +1,254 @@ +<samba:parameter name="security" + context="G" + basic="1" advanced="1" wizard="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option affects how clients respond to + Samba and is one of the most important settings in the <filename moreinfo="none"> + smb.conf</filename> file.</para> + + <para>The option sets the "security mode bit" in replies to + protocol negotiations with <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> 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.</para> + + + <para>The default is <command moreinfo="none">security = user</command>, as this is + the most common setting needed when talking to Windows 98 and + Windows NT.</para> + + <para>The alternatives are <command moreinfo="none">security = share</command>, + <command moreinfo="none">security = server</command> or <command moreinfo="none">security = domain + </command>.</para> + + <para>In versions of Samba prior to 2.0.0, the default was + <command moreinfo="none">security = share</command> mainly because that was + the only option at one stage.</para> + + <para>There is a bug in WfWg that has relevance to this + setting. When in user or server 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.</para> + + <para>If your PCs use usernames that are the same as their + usernames on the UNIX machine then you will want to use + <command moreinfo="none">security = user</command>. If you mostly use usernames + that don't exist on the UNIX box then use <command moreinfo="none">security = + share</command>.</para> + + <para>You should also use <command moreinfo="none">security = share</command> if you + want to mainly setup shares without a password (guest shares). This + is commonly used for a shared printer server. It is more difficult + to setup guest shares with <command moreinfo="none">security = user</command>, see + the <link linkend="MAPTOGUEST"><parameter moreinfo="none">map to guest</parameter> + </link>parameter for details.</para> + + <para>It is possible to use <command moreinfo="none">smbd</command> in a <emphasis> + hybrid mode</emphasis> where it is offers both user and share + level security under different <link linkend="NETBIOSALIASES"> + <parameter moreinfo="none">NetBIOS aliases</parameter></link>. </para> + + <para>The different settings will now be explained.</para> + + + <para><anchor id="SECURITYEQUALSSHARE"/><emphasis>SECURITY = SHARE</emphasis></para> + + <para>When clients connect to a share level security server they + need not log onto the server with a valid username and password before + attempting to connect to a shared resource (although modern clients + such as Windows 95/98 and Windows NT will send a logon request with + a username but no password when talking to a <command moreinfo="none">security = share + </command> server). Instead, the clients send authentication information + (passwords) on a per-share basis, at the time they attempt to connect + to that share.</para> + + <para>Note that <command moreinfo="none">smbd</command> <emphasis>ALWAYS</emphasis> + uses a valid UNIX user to act on behalf of the client, even in + <command moreinfo="none">security = share</command> level security.</para> + + <para>As clients are not required to send a username to the server + in share level security, <command moreinfo="none">smbd</command> uses several + techniques to determine the correct UNIX user to use on behalf + of the client.</para> + + <para>A list of possible UNIX usernames to match with the given + client password is constructed using the following methods :</para> + + <itemizedlist> + <listitem> + <para>If the <link linkend="GUESTONLY"><parameter moreinfo="none">guest + only</parameter></link> parameter is set, then all the other + stages are missed and only the <link linkend="GUESTACCOUNT"> + <parameter moreinfo="none">guest account</parameter></link> username is checked. + </para> + </listitem> + + <listitem> + <para>Is a username is sent with the share connection + request, then this username (after mapping - see <link linkend="USERNAMEMAP"> + <parameter moreinfo="none">username map</parameter></link>), + is added as a potential username. + </para> + </listitem> + + <listitem> + <para>If the client did a previous <emphasis>logon + </emphasis> request (the SessionSetup SMB call) then the + username sent in this SMB will be added as a potential username. + </para> + </listitem> + + <listitem> + <para>The name of the service the client requested is + added as a potential username. + </para> + </listitem> + + <listitem> + <para>The NetBIOS name of the client is added to + the list as a potential username. + </para> + </listitem> + + <listitem> + <para>Any users on the <link linkend="USER"><parameter moreinfo="none"> + user</parameter></link> list are added as potential usernames. + </para> + </listitem> + </itemizedlist> + + <para>If the <parameter moreinfo="none">guest only</parameter> parameter is + not set, then this list is then tried with the supplied password. + The first user for whom the password matches will be used as the + UNIX user.</para> + + <para>If the <parameter moreinfo="none">guest only</parameter> parameter is + set, or no username can be determined then if the share is marked + as available to the <parameter moreinfo="none">guest account</parameter>, then this + guest user will be used, otherwise access is denied.</para> + + <para>Note that it can be <emphasis>very</emphasis> confusing + in share-level security as to which UNIX username will eventually + be used in granting access.</para> + + <para>See also the section <link linkend="VALIDATIONSECT"> + NOTE ABOUT USERNAME/PASSWORD VALIDATION</link>.</para> + + <para><anchor id="SECURITYEQUALSUSER"/><emphasis>SECURITY = USER</emphasis></para> + + <para>This is the default security setting in Samba 3.0. + With user-level security a client must first "log-on" with a + valid username and password (which can be mapped using the <link linkend="USERNAMEMAP"> + <parameter moreinfo="none">username map</parameter></link> + parameter). Encrypted passwords (see the <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypted passwords</parameter></link> parameter) can also + be used in this security mode. Parameters such as <link linkend="USER"> + <parameter moreinfo="none">user</parameter></link> and <link linkend="GUESTONLY"> + <parameter moreinfo="none">guest only</parameter></link> if set are then applied and + may change the UNIX user to use on this connection, but only after + the user has been successfully authenticated.</para> + + <para><emphasis>Note</emphasis> that the name of the resource being + requested is <emphasis>not</emphasis> sent to the server until after + the server has successfully authenticated the client. This is why + guest shares don't work in user level security without allowing + the server to automatically map unknown users into the <link linkend="GUESTACCOUNT"> + <parameter moreinfo="none">guest account</parameter></link>. + See the <link linkend="MAPTOGUEST"><parameter moreinfo="none">map to guest</parameter> + </link> parameter for details on doing this.</para> + + <para>See also the section <link linkend="VALIDATIONSECT"> + NOTE ABOUT USERNAME/PASSWORD VALIDATION</link>.</para> + + <para><anchor id="SECURITYEQUALSDOMAIN"/><emphasis>SECURITY = DOMAIN</emphasis></para> + + <para>This mode will only work correctly if <citerefentry><refentrytitle>net</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> has been used to add this + machine into a Windows NT Domain. It expects the <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypted passwords</parameter> + </link> parameter to be set to <constant>yes</constant>. In this + mode Samba will try to validate the username/password by passing + it to a Windows NT Primary or Backup Domain Controller, in exactly + the same way that a Windows NT Server would do.</para> + + <para><emphasis>Note</emphasis> that a valid UNIX user must still + exist as well as the account on the Domain Controller to allow + Samba to have a valid UNIX account to map file access to.</para> + + <para><emphasis>Note</emphasis> that from the client's point + of view <command moreinfo="none">security = domain</command> is the same + as <command moreinfo="none">security = user</command>. It only + affects how the server deals with the authentication, + it does not in any way affect what the client sees.</para> + + <para><emphasis>Note</emphasis> that the name of the resource being + requested is <emphasis>not</emphasis> sent to the server until after + the server has successfully authenticated the client. This is why + guest shares don't work in user level security without allowing + the server to automatically map unknown users into the <link linkend="GUESTACCOUNT"> + <parameter moreinfo="none">guest account</parameter></link>. + See the <link linkend="MAPTOGUEST"><parameter moreinfo="none">map to guest</parameter> + </link> parameter for details on doing this.</para> + + <para>See also the section <link linkend="VALIDATIONSECT"> + NOTE ABOUT USERNAME/PASSWORD VALIDATION</link>.</para> + + <para>See also the <link linkend="PASSWORDSERVER"><parameter moreinfo="none">password + server</parameter></link> parameter and the <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypted passwords</parameter> + </link> parameter.</para> + + <para><anchor id="SECURITYEQUALSSERVER"/><emphasis>SECURITY = SERVER</emphasis></para> + + <para>In this mode 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 <command moreinfo="none">security = + user</command>. It expects the <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypted passwords</parameter></link> parameter + to be set to <constant>yes</constant>, unless the remote server + does not support them. However note that if encrypted passwords have been + negotiated then Samba cannot revert back to checking the UNIX password file, + it must have a valid <filename moreinfo="none">smbpasswd</filename> file to check + users against. See the documentation file in the <filename moreinfo="none">docs/</filename> directory + <filename moreinfo="none">ENCRYPTION.txt</filename> for details on how to set this up.</para> + + <para><emphasis>Note</emphasis> this mode of operation has + significant pitfalls, due to the fact that is activly initiates a + man-in-the-middle attack on the remote SMB server. In particular, + this mode of operation can cause significant resource consuption on + the PDC, as it must maintain an active connection for the duration + of the user's session. Furthermore, if this connection is lost, + there is no way to reestablish it, and futher authenticaions to the + Samba server may fail. (From a single client, till it disconnects). + </para> + + <para><emphasis>Note</emphasis> that from the client's point of + view <command moreinfo="none">security = server</command> is the + same as <command moreinfo="none">security = user</command>. It + only affects how the server deals with the authentication, it does + not in any way affect what the client sees.</para> + + <para><emphasis>Note</emphasis> that the name of the resource being + requested is <emphasis>not</emphasis> sent to the server until after + the server has successfully authenticated the client. This is why + guest shares don't work in user level security without allowing + the server to automatically map unknown users into the <link linkend="GUESTACCOUNT"> + <parameter moreinfo="none">guest account</parameter></link>. + See the <link linkend="MAPTOGUEST"><parameter moreinfo="none">map to guest</parameter> + </link> parameter for details on doing this.</para> + + <para>See also the section <link linkend="VALIDATIONSECT"> + NOTE ABOUT USERNAME/PASSWORD VALIDATION</link>.</para> + + <para>See also the <link linkend="PASSWORDSERVER"><parameter moreinfo="none">password + server</parameter></link> parameter and the <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypted passwords</parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">security = USER</command></para> + <para>Example: <command moreinfo="none">security = DOMAIN</command></para> + +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/securitymask.xml b/docs/docbook/smbdotconf/security/securitymask.xml new file mode 100644 index 0000000000..ee3e8f916c --- /dev/null +++ b/docs/docbook/smbdotconf/security/securitymask.xml @@ -0,0 +1,36 @@ +<samba:parameter name="security mask" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls what UNIX permission + bits can be modified when a Windows NT client is manipulating + the UNIX permission on a file using the native NT security + dialog box.</para> + + <para>This parameter is applied as a mask (AND'ed with) to + the changed permission bits, thus preventing any bits not in + this mask from being modified. Essentially, zero bits in this + mask may be treated as a set of bits the user is not allowed + to change.</para> + + <para>If not set explicitly this parameter is 0777, allowing + a user to modify all the user/group/world permissions on a file. + </para> + + <para><emphasis>Note</emphasis> that users who can access the + Samba server through other means can easily bypass this + restriction, so it is primarily useful for standalone + "appliance" systems. Administrators of most normal systems will + probably want to leave it set to <constant>0777</constant>.</para> + + <para>See also the <link linkend="FORCEDIRECTORYSECURITYMODE"> + <parameter moreinfo="none">force directory security mode</parameter></link>, + <link linkend="DIRECTORYSECURITYMASK"><parameter moreinfo="none">directory + security mask</parameter></link>, <link linkend="FORCESECURITYMODE"> + <parameter moreinfo="none">force security mode</parameter></link> parameters.</para> + + <para>Default: <command moreinfo="none">security mask = 0777</command></para> + + <para>Example: <command moreinfo="none">security mask = 0770</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/serverschannel.xml b/docs/docbook/smbdotconf/security/serverschannel.xml new file mode 100644 index 0000000000..1747fbea66 --- /dev/null +++ b/docs/docbook/smbdotconf/security/serverschannel.xml @@ -0,0 +1,25 @@ +<samba:parameter name="server schannel" + context="G" + basic="1" + xmlns:samba="http://samba.org/common"> +<listitem> + + <para>This controls whether the server offers or even + demands the use of the netlogon schannel. + <parameter>server schannel = no</parameter> does not + offer the schannel, <parameter>server schannel = + auto</parameter> offers the schannel but does not + enforce it, and <parameter>server schannel = + yes</parameter> denies access if the client is not + able to speak netlogon schannel. This is only the case + for Windows NT4 before SP4.</para> + + <para>Please note that with this set to + <parameter>no</parameter> you will have to apply the + WindowsXP requireSignOrSeal-Registry patch found in + the docs/Registry subdirectory.</para> + + <para>Default: <command>server schannel = auto</command></para> + <para>Example: <command>server schannel = yes</command></para> +</listitem> +</samba:parameter>
\ No newline at end of file diff --git a/docs/docbook/smbdotconf/security/smbpasswdfile.xml b/docs/docbook/smbdotconf/security/smbpasswdfile.xml new file mode 100644 index 0000000000..cb31ba5019 --- /dev/null +++ b/docs/docbook/smbdotconf/security/smbpasswdfile.xml @@ -0,0 +1,14 @@ +<samba:parameter name="smb passwd file" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + + <para>This option sets the path to the encrypted smbpasswd file. By + default the path to the smbpasswd file is compiled into Samba.</para> + + <para>Default: <command moreinfo="none">smb passwd file = ${prefix}/private/smbpasswd</command></para> + + <para>Example: <command moreinfo="none">smb passwd file = /etc/samba/smbpasswd</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/unixpasswordsync.xml b/docs/docbook/smbdotconf/security/unixpasswordsync.xml new file mode 100644 index 0000000000..0d22ed9c7e --- /dev/null +++ b/docs/docbook/smbdotconf/security/unixpasswordsync.xml @@ -0,0 +1,22 @@ +<samba:parameter name="unix password sync" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This boolean parameter controls whether Samba + attempts to synchronize the UNIX password with the SMB password + when the encrypted SMB password in the smbpasswd file is changed. + If this is set to <constant>yes</constant> the program specified in the <parameter moreinfo="none">passwd + program</parameter>parameter is called <emphasis>AS ROOT</emphasis> - + to allow the new UNIX password to be set without access to the + old UNIX password (as the SMB password change code has no + access to the old password cleartext, only the new).</para> + + <para>See also <link linkend="PASSWDPROGRAM"><parameter moreinfo="none">passwd + program</parameter></link>, <link linkend="PASSWDCHAT"><parameter moreinfo="none"> + passwd chat</parameter></link>. + </para> + + <para>Default: <command moreinfo="none">unix password sync = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/updateencrypted.xml b/docs/docbook/smbdotconf/security/updateencrypted.xml new file mode 100644 index 0000000000..76b37948d7 --- /dev/null +++ b/docs/docbook/smbdotconf/security/updateencrypted.xml @@ -0,0 +1,33 @@ +<samba:parameter name="update encrypted" + context="G" + basic="1" advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + + <para>This boolean parameter allows a user logging on with + a plaintext password to have their encrypted (hashed) password in + the smbpasswd file to be updated automatically as they log + on. This option allows a site to migrate from plaintext + password authentication (users authenticate with plaintext + password over the wire, and are checked against a UNIX account + database) to encrypted password authentication (the SMB + challenge/response authentication mechanism) without forcing all + users to re-enter their passwords via smbpasswd at the time the + change is made. This is a convenience option to allow the change + over to encrypted passwords to be made over a longer period. + Once all users have encrypted representations of their passwords + in the smbpasswd file this parameter should be set to + <constant>no</constant>.</para> + + <para>In order for this parameter to work correctly the <link linkend="ENCRYPTPASSWORDS"> + <parameter moreinfo="none">encrypt passwords</parameter></link> parameter must + be set to <constant>no</constant> when this parameter is set to <constant>yes</constant>.</para> + + <para>Note that even when this parameter is set a user + authenticating to <command moreinfo="none">smbd</command> must still enter a valid + password in order to connect correctly, and to update their hashed + (smbpasswd) passwords.</para> + + <para>Default: <command moreinfo="none">update encrypted = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/user.xml b/docs/docbook/smbdotconf/security/user.xml new file mode 100644 index 0000000000..4ca2e18fac --- /dev/null +++ b/docs/docbook/smbdotconf/security/user.xml @@ -0,0 +1,8 @@ +<samba:parameter name="user" + context="S" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="USERNAME"><parameter moreinfo="none">username</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/username.xml b/docs/docbook/smbdotconf/security/username.xml new file mode 100644 index 0000000000..f1aa2fe1f8 --- /dev/null +++ b/docs/docbook/smbdotconf/security/username.xml @@ -0,0 +1,64 @@ +<samba:parameter name="username" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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).</para> + + <para>The <parameter moreinfo="none">username</parameter> 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.</para> + + <para>The <parameter moreinfo="none">username</parameter> 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 + <parameter moreinfo="none">username</parameter> 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.</para> + + <para>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.</para> + + <para>To restrict a service to a particular set of users you + can use the <link linkend="VALIDUSERS"><parameter moreinfo="none">valid users + </parameter></link> parameter.</para> + + <para>If any of the usernames begin with a '@' then the name + will be looked up first in the NIS netgroups list (if Samba + is compiled with netgroup support), followed by a lookup in + the UNIX groups database and will expand to a list of all users + in the group of that name.</para> + + <para>If any of the usernames begin with a '+' then the name + will be looked up only in the UNIX groups database and will + expand to a list of all users in the group of that name.</para> + + <para>If any of the usernames begin with a '&' then the name + will be looked up only in the NIS netgroups database (if Samba + is compiled with netgroup support) and will expand to a list + of all users in the netgroup group of that name.</para> + + <para>Note that searching though a groups database can take + quite some time, and some clients may time out during the + search.</para> + + <para>See the section <link linkend="VALIDATIONSECT">NOTE ABOUT + USERNAME/PASSWORD VALIDATION</link> for more information on how + this parameter determines access to the services.</para> + + <para>Default: <command moreinfo="none">The guest account if a guest service, + else <empty string>.</command></para> + + <para>Examples:<command moreinfo="none">username = fred, mary, jack, jane, + @users, @pcgroup</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/usernamelevel.xml b/docs/docbook/smbdotconf/security/usernamelevel.xml new file mode 100644 index 0000000000..3c71e3b710 --- /dev/null +++ b/docs/docbook/smbdotconf/security/usernamelevel.xml @@ -0,0 +1,24 @@ +<samba:parameter name="username level" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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.</para> + + <para>If this parameter is set to non-zero the behavior changes. + This parameter is a number that specifies the number of uppercase + combinations to try while 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 <constant>AstrangeUser + </constant>.</para> + + <para>Default: <command moreinfo="none">username level = 0</command></para> + + <para>Example: <command moreinfo="none">username level = 5</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/usernamemap.xml b/docs/docbook/smbdotconf/security/usernamemap.xml new file mode 100644 index 0000000000..583a1a872e --- /dev/null +++ b/docs/docbook/smbdotconf/security/usernamemap.xml @@ -0,0 +1,91 @@ +<samba:parameter name="username map" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option allows you 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.</para> + + <para>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. Each line of the + map file may be up to 1023 characters long.</para> + + <para>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.</para> + + <para>If any line begins with a '#' or a ';' then it is ignored</para> + + <para>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.</para> + + <para>For example to map from the name <constant>admin</constant> + or <constant>administrator</constant> to the UNIX name <constant> + root</constant> you would use:</para> + + <para><command moreinfo="none">root = admin administrator</command></para> + + <para>Or to map anyone in the UNIX group <constant>system</constant> + to the UNIX name <constant>sys</constant> you would use:</para> + + <para><command moreinfo="none">sys = @system</command></para> + + <para>You can have as many mappings as you like in a username map file.</para> + + + <para>If your system supports the NIS NETGROUP option then + the netgroup database is checked before the <filename moreinfo="none">/etc/group + </filename> database for matching groups.</para> + + <para>You can map Windows usernames that have spaces in them + by using double quotes around the name. For example:</para> + + <para><command moreinfo="none">tridge = "Andrew Tridgell"</command></para> + + <para>would map the windows username "Andrew Tridgell" to the + unix username "tridge".</para> + + <para>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.</para> + +<para><programlisting format="linespecific"> +!sys = mary fred +guest = * +</programlisting></para> + + <para>Note that the remapping is applied to all occurrences + of usernames. Thus if you connect to \\server\fred and <constant> + fred</constant> is remapped to <constant>mary</constant> then you + will actually be connecting to \\server\mary and will need to + supply a password suitable for <constant>mary</constant> not + <constant>fred</constant>. The only exception to this is the + username passed to the <link linkend="PASSWORDSERVER"><parameter moreinfo="none"> + password server</parameter></link> (if you have one). The password + server will receive whatever username the client supplies without + modification.</para> + + <para>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.</para> + + <para>Default: <emphasis>no username map</emphasis></para> + + <para>Example: <command moreinfo="none">username map = /usr/local/samba/lib/users.map</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/users.xml b/docs/docbook/smbdotconf/security/users.xml new file mode 100644 index 0000000000..fdb19da243 --- /dev/null +++ b/docs/docbook/smbdotconf/security/users.xml @@ -0,0 +1,9 @@ +<samba:parameter name="users" + context="S" + hide="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="USERNAME"><parameter moreinfo="none"> + username</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/validusers.xml b/docs/docbook/smbdotconf/security/validusers.xml new file mode 100644 index 0000000000..268e913cb5 --- /dev/null +++ b/docs/docbook/smbdotconf/security/validusers.xml @@ -0,0 +1,25 @@ +<samba:parameter name="valid users" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a list of users that should be allowed + to login to this service. Names starting with '@', '+' and '&' + are interpreted using the same rules as described in the + <parameter moreinfo="none">invalid users</parameter> parameter.</para> + + <para>If this is empty (the default) then any user can login. + If a username is in both this list and the <parameter moreinfo="none">invalid + users</parameter> list then access is denied for that user.</para> + + <para>The current servicename is substituted for <parameter moreinfo="none">%S + </parameter>. This is useful in the [homes] section.</para> + + <para>See also <link linkend="INVALIDUSERS"><parameter moreinfo="none">invalid users + </parameter></link></para> + + <para>Default: <emphasis>No valid users list (anyone can login) + </emphasis></para> + + <para>Example: <command moreinfo="none">valid users = greg, @pcusers</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/writable.xml b/docs/docbook/smbdotconf/security/writable.xml new file mode 100644 index 0000000000..9b32db8ebc --- /dev/null +++ b/docs/docbook/smbdotconf/security/writable.xml @@ -0,0 +1,8 @@ +<samba:parameter name="writable" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Synonym for <link linkend="WRITEABLE"><parameter moreinfo="none"> + writeable</parameter></link> for people who can't spell :-).</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/writeable.xml b/docs/docbook/smbdotconf/security/writeable.xml new file mode 100644 index 0000000000..63e7734986 --- /dev/null +++ b/docs/docbook/smbdotconf/security/writeable.xml @@ -0,0 +1,8 @@ +<samba:parameter name="writeable" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Inverted synonym for <link linkend="READONLY"> + <parameter moreinfo="none">read only</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/writelist.xml b/docs/docbook/smbdotconf/security/writelist.xml new file mode 100644 index 0000000000..4a0e046127 --- /dev/null +++ b/docs/docbook/smbdotconf/security/writelist.xml @@ -0,0 +1,22 @@ +<samba:parameter name="write list" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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 <link linkend="READONLY"> + <parameter moreinfo="none">read only</parameter></link> + option is set to. The list can include group names using the + @group syntax.</para> + + <para>Note that if a user is in both the read list and the + write list then they will be given write access.</para> + + <para>See also the <link linkend="READLIST"><parameter moreinfo="none">read list + </parameter></link> option.</para> + + <para>Default: <command moreinfo="none">write list = <empty string></command></para> + + <para>Example: <command moreinfo="none">write list = admin, root, @staff</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/security/writeok.xml b/docs/docbook/smbdotconf/security/writeok.xml new file mode 100644 index 0000000000..da68489012 --- /dev/null +++ b/docs/docbook/smbdotconf/security/writeok.xml @@ -0,0 +1,8 @@ +<samba:parameter name="write ok" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Inverted synonym for <link linkend="READONLY"> + <parameter moreinfo="none">read only</parameter></link>.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/blocksize.xml b/docs/docbook/smbdotconf/tuning/blocksize.xml new file mode 100644 index 0000000000..eecf1925e8 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/blocksize.xml @@ -0,0 +1,22 @@ +<samba:parameter name="block size" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter controls the behavior of <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> when reporting disk free + sizes. By default, this reports a disk block size of 1024 bytes. + </para> + + <para>Changing this parameter may have some effect on the + efficiency of client writes, this is not yet confirmed. This + parameter was added to allow advanced administrators to change + it (usually to a higher value) and test the effect it has on + client write performance without re-compiling the code. As this + is an experimental option it may be removed in a future release. + </para> + + <para>Changing this option does not change the disk free reporting + size, just the block size unit reported to the client. + </para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/changenotifytimeout.xml b/docs/docbook/smbdotconf/tuning/changenotifytimeout.xml new file mode 100644 index 0000000000..471798c269 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/changenotifytimeout.xml @@ -0,0 +1,20 @@ +<samba:parameter name="change notify timeout" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This SMB allows a client to tell a server to + "watch" a particular directory for any changes and only reply to + the SMB request when a change has occurred. Such constant scanning of + a directory is expensive under UNIX, hence an <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> daemon only performs such a scan + on each requested directory once every <parameter moreinfo="none">change notify + timeout</parameter> seconds.</para> + + <para>Default: <command moreinfo="none">change notify timeout = 60</command></para> + + <para>Example: <command moreinfo="none">change notify timeout = 300</command></para> + + <para>Would change the scan time to every 5 minutes.</para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/deadtime.xml b/docs/docbook/smbdotconf/tuning/deadtime.xml new file mode 100644 index 0000000000..cbbf751862 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/deadtime.xml @@ -0,0 +1,27 @@ +<samba:parameter name="dead time" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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.</para> + + <para>This is useful to stop a server's resources being + exhausted by a large number of inactive connections.</para> + + <para>Most clients have an auto-reconnect feature when a + connection is broken so in most cases this parameter should be + transparent to users.</para> + + <para>Using this parameter with a timeout of a few minutes + is recommended for most systems.</para> + + <para>A deadtime of zero indicates that no auto-disconnection + should be performed.</para> + + <para>Default: <command moreinfo="none">deadtime = 0</command></para> + <para>Example: <command moreinfo="none">deadtime = 15</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/getwdcache.xml b/docs/docbook/smbdotconf/tuning/getwdcache.xml new file mode 100644 index 0000000000..8c22be9fb5 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/getwdcache.xml @@ -0,0 +1,14 @@ +<samba:parameter name="getwd cache" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a tuning option. When this is enabled a + caching algorithm will be used to reduce the time taken for getwd() + calls. This can have a significant impact on performance, especially + when the <link linkend="WIDELINKS"><parameter moreinfo="none">wide links</parameter> + </link> parameter is set to <constant>no</constant>.</para> + + <para>Default: <command moreinfo="none">getwd cache = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/hostnamelookups.xml b/docs/docbook/smbdotconf/tuning/hostnamelookups.xml new file mode 100644 index 0000000000..613fabe42f --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/hostnamelookups.xml @@ -0,0 +1,16 @@ +<samba:parameter name="hostname lookups" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Specifies whether samba should use (expensive) + hostname lookups or use the ip addresses instead. An example place + where hostname lookups are currently used is when checking + the <command moreinfo="none">hosts deny</command> and <command moreinfo="none">hosts allow</command>. + </para> + + <para>Default: <command moreinfo="none">hostname lookups = yes</command></para> + + <para>Example: <command moreinfo="none">hostname lookups = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/keepalive.xml b/docs/docbook/smbdotconf/tuning/keepalive.xml new file mode 100644 index 0000000000..1320dfab61 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/keepalive.xml @@ -0,0 +1,21 @@ +<samba:parameter name="keepalive" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The value of the parameter (an integer) represents + the number of seconds between <parameter moreinfo="none">keepalive</parameter> + 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.</para> + + <para>Keepalives should, in general, not be needed if the socket + being used has the SO_KEEPALIVE attribute set on it (see <link linkend="SOCKETOPTIONS"> + <parameter moreinfo="none">socket options</parameter></link>). + Basically you should only use this option if you strike difficulties.</para> + + <para>Default: <command moreinfo="none">keepalive = 300</command></para> + + <para>Example: <command moreinfo="none">keepalive = 600</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/maxconnections.xml b/docs/docbook/smbdotconf/tuning/maxconnections.xml new file mode 100644 index 0000000000..5127df06f4 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/maxconnections.xml @@ -0,0 +1,18 @@ +<samba:parameter name="max connections" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option allows the number of simultaneous connections to a service to be limited. + If <parameter moreinfo="none">max connections</parameter> 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.</para> + + <para>Record lock files are used to implement this feature. The lock files will be stored in + the directory specified by the <link linkend="LOCKDIRECTORY"> + <parameter moreinfo="none">lock directory</parameter></link> option.</para> + + <para>Default: <command moreinfo="none">max connections = 0</command></para> + + <para>Example: <command moreinfo="none">max connections = 10</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/maxdisksize.xml b/docs/docbook/smbdotconf/tuning/maxdisksize.xml new file mode 100644 index 0000000000..7d99b31e03 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/maxdisksize.xml @@ -0,0 +1,28 @@ +<samba:parameter name="max disk size" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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.</para> + + <para>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 <parameter moreinfo="none">max + disk size</parameter>.</para> + + <para>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.</para> + + <para>A <parameter moreinfo="none">max disk size</parameter> of 0 means no limit.</para> + + <para>Default: <command moreinfo="none">max disk size = 0</command></para> + + <para>Example: <command moreinfo="none">max disk size = 1000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/maxopenfiles.xml b/docs/docbook/smbdotconf/tuning/maxopenfiles.xml new file mode 100644 index 0000000000..9505b2aaa5 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/maxopenfiles.xml @@ -0,0 +1,19 @@ +<samba:parameter name="max open files" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter limits the maximum number of + open files that one <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> file + serving process may have open for a client at any one time. The + default for this parameter is set very high (10,000) as Samba uses + only one bit per unopened file.</para> + + <para>The limit of the number of open files is usually set + by the UNIX per-process file descriptor limit rather than + this parameter so you should never need to touch this parameter.</para> + + <para>Default: <command moreinfo="none">max open files = 10000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/maxsmbdprocesses.xml b/docs/docbook/smbdotconf/tuning/maxsmbdprocesses.xml new file mode 100644 index 0000000000..453818ab7d --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/maxsmbdprocesses.xml @@ -0,0 +1,18 @@ +<samba:parameter name="max smbd processes" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter limits the maximum number of <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> processes concurrently running on a system and is intended + as a stopgap to prevent degrading service to clients in the event that the server has insufficient + resources to handle more than this number of connections. Remember that under normal operating + conditions, each user will have an <citerefentry><refentrytitle>smbd</refentrytitle> + <manvolnum>8</manvolnum></citerefentry> associated with him or her to handle connections to all + shares from a given host.</para> + + <para>Default: <command moreinfo="none">max smbd processes = 0</command> ## no limit</para> + + <para>Example: <command moreinfo="none">max smbd processes = 1000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/minprintspace.xml b/docs/docbook/smbdotconf/tuning/minprintspace.xml new file mode 100644 index 0000000000..0df75af0ab --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/minprintspace.xml @@ -0,0 +1,18 @@ +<samba:parameter name="min print space" + context="S" + print="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>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 a user can always spool a print job.</para> + + <para>See also the <link linkend="PRINTING"><parameter moreinfo="none">printing + </parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">min print space = 0</command></para> + + <para>Example: <command moreinfo="none">min print space = 2000</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/namecachetimeout.xml b/docs/docbook/smbdotconf/tuning/namecachetimeout.xml new file mode 100644 index 0000000000..6330760915 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/namecachetimeout.xml @@ -0,0 +1,15 @@ +<samba:parameter name="name cache timeout" + context="G" + advanced="1" developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Specifies the number of seconds it takes before + entries in samba's hostname resolve cache time out. If + the timeout is set to 0. the caching is disabled. + </para> + + <para>Default: <command moreinfo="none">name cache timeout = 660</command></para> + + <para>Example: <command moreinfo="none">name cache timeout = 0</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/paranoidserversecurity.xml b/docs/docbook/smbdotconf/tuning/paranoidserversecurity.xml new file mode 100644 index 0000000000..3fababf01b --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/paranoidserversecurity.xml @@ -0,0 +1,18 @@ +<samba:parameter name="paranoid server security" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>Some version of NT 4.x allow non-guest + users with a bad passowrd. When this option is enabled, samba will not + use a broken NT 4.x server as password server, but instead complain + to the logs and exit. + </para> + + <para>Disabling this option prevents Samba from making + this check, which involves deliberatly attempting a + bad logon to the remote server.</para> + + <para>Default: <command moreinfo="none">paranoid server security = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/readsize.xml b/docs/docbook/smbdotconf/tuning/readsize.xml new file mode 100644 index 0000000000..c76b810225 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/readsize.xml @@ -0,0 +1,29 @@ +<samba:parameter name="read size" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>The option <parameter moreinfo="none">read size</parameter> + 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.</para> + + <para>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.</para> + + <para>The default value is 16384, 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.</para> + + <para>Default: <command moreinfo="none">read size = 16384</command></para> + + <para>Example: <command moreinfo="none">read size = 8192</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/socketoptions.xml b/docs/docbook/smbdotconf/tuning/socketoptions.xml new file mode 100644 index 0000000000..5684ac5bca --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/socketoptions.xml @@ -0,0 +1,75 @@ +<samba:parameter name="socket options" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This option allows you to set socket options + to be used when talking with the client.</para> + + <para>Socket options are controls on the networking layer + of the operating systems which allow the connection to be + tuned.</para> + + <para>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. We strongly + suggest you read the appropriate documentation for your operating + system first (perhaps <command moreinfo="none">man + setsockopt</command> will help).</para> + + <para>You may find that on some systems Samba will say + "Unknown socket option" when you supply an option. This means you + either incorrectly 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 <ulink url="mailto:samba-technical@samba.org"> + samba-technical@samba.org</ulink>.</para> + + <para>Any of the supported socket options may be combined + in any way you like, as long as your OS allows it.</para> + + <para>This is the list of socket options currently settable + using this option:</para> + + <itemizedlist> + <listitem><para>SO_KEEPALIVE</para></listitem> + <listitem><para>SO_REUSEADDR</para></listitem> + <listitem><para>SO_BROADCAST</para></listitem> + <listitem><para>TCP_NODELAY</para></listitem> + <listitem><para>IPTOS_LOWDELAY</para></listitem> + <listitem><para>IPTOS_THROUGHPUT</para></listitem> + <listitem><para>SO_SNDBUF *</para></listitem> + <listitem><para>SO_RCVBUF *</para></listitem> + <listitem><para>SO_SNDLOWAT *</para></listitem> + <listitem><para>SO_RCVLOWAT *</para></listitem> + </itemizedlist> + + <para>Those marked with a <emphasis>'*'</emphasis> 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.</para> + + <para>To specify an argument use the syntax SOME_OPTION = VALUE + for example <command moreinfo="none">SO_SNDBUF = 8192</command>. Note that you must + not have any spaces before or after the = sign.</para> + + <para>If you are on a local network then a sensible option + might be:</para> + + <para><command moreinfo="none">socket options = IPTOS_LOWDELAY</command></para> + + <para>If you have a local network then you could try:</para> + + <para><command moreinfo="none">socket options = IPTOS_LOWDELAY TCP_NODELAY</command></para> + + <para>If you are on a wide area network then perhaps try + setting IPTOS_THROUGHPUT. </para> + + <para>Note that several of the options may cause your Samba + server to fail completely. Use these options with caution!</para> + + <para>Default: <command moreinfo="none">socket options = TCP_NODELAY</command></para> + + <para>Example: <command moreinfo="none">socket options = IPTOS_LOWDELAY</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/statcachesize.xml b/docs/docbook/smbdotconf/tuning/statcachesize.xml new file mode 100644 index 0000000000..0c8d4e0c72 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/statcachesize.xml @@ -0,0 +1,12 @@ +<samba:parameter name="stat cache size" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This parameter determines the number of + entries in the <parameter moreinfo="none">stat cache</parameter>. You should + never need to change this parameter.</para> + + <para>Default: <command moreinfo="none">stat cache size = 50</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/strictallocate.xml b/docs/docbook/smbdotconf/tuning/strictallocate.xml new file mode 100644 index 0000000000..0d11519b04 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/strictallocate.xml @@ -0,0 +1,23 @@ +<samba:parameter name="strict allocate" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a boolean that controls the handling of + disk space allocation in the server. When this is set to <constant>yes</constant> + the server will change from UNIX behaviour of not committing real + disk storage blocks when a file is extended to the Windows behaviour + of actually forcing the disk system to allocate real storage blocks + when a file is created or extended to be a given size. In UNIX + terminology this means that Samba will stop creating sparse files. + This can be slow on some systems.</para> + + <para>When strict allocate is <constant>no</constant> the server does sparse + disk block allocation when a file is extended.</para> + + <para>Setting this to <constant>yes</constant> can help Samba return + out of quota messages on systems that are restricting the disk quota + of users.</para> + + <para>Default: <command moreinfo="none">strict allocate = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/syncalways.xml b/docs/docbook/smbdotconf/tuning/syncalways.xml new file mode 100644 index 0000000000..dca33eb802 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/syncalways.xml @@ -0,0 +1,21 @@ +<samba:parameter name="sync always" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This is a boolean parameter that controls + whether writes will always be written to stable storage before + the write call returns. If this is <constant>no</constant> 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 <constant>yes</constant> then every write will be followed by a <command moreinfo="none">fsync() + </command> call to ensure the data is written to disk. Note that + the <parameter moreinfo="none">strict sync</parameter> parameter must be set to + <constant>yes</constant> in order for this parameter to have + any affect.</para> + + <para>See also the <link linkend="STRICTSYNC"><parameter moreinfo="none">strict + sync</parameter></link> parameter.</para> + + <para>Default: <command moreinfo="none">sync always = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/usemmap.xml b/docs/docbook/smbdotconf/tuning/usemmap.xml new file mode 100644 index 0000000000..1e79e07ef3 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/usemmap.xml @@ -0,0 +1,17 @@ +<samba:parameter name="use mmap" + context="G" + developer="1" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>This global parameter determines if the tdb internals of Samba can + depend on mmap working correctly on the running system. Samba requires a coherent + mmap/read-write system memory cache. Currently only HPUX does not have such a + coherent cache, and so this parameter is set to <constant>no</constant> by + default on HPUX. On all other systems this parameter should be left alone. This + parameter is provided to help the Samba developers track down problems with + the tdb internal code. + </para> + + <para>Default: <command moreinfo="none">use mmap = yes</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/usesendfile.xml b/docs/docbook/smbdotconf/tuning/usesendfile.xml new file mode 100644 index 0000000000..6bbd651549 --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/usesendfile.xml @@ -0,0 +1,15 @@ +<samba:parameter name="use sendfile" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>If this parameter is <constant>yes</constant>, and Samba + was built with the --with-sendfile-support option, and the underlying operating + system supports sendfile system call, then some SMB read calls (mainly ReadAndX + and ReadRaw) will use the more efficient sendfile system call for files that + are exclusively oplocked. This may make more efficient use of the system CPU's + and cause Samba to be faster. This is off by default as it's effects are unknown + as yet.</para> + + <para>Default: <command moreinfo="none">use sendfile = no</command></para> +</listitem> +</samba:parameter> diff --git a/docs/docbook/smbdotconf/tuning/writecachesize.xml b/docs/docbook/smbdotconf/tuning/writecachesize.xml new file mode 100644 index 0000000000..8b5fbe66bd --- /dev/null +++ b/docs/docbook/smbdotconf/tuning/writecachesize.xml @@ -0,0 +1,30 @@ +<samba:parameter name="write cache size" + context="S" + xmlns:samba="http://samba.org/common"> +<listitem> + <para>If this integer parameter is set to non-zero value, + Samba will create an in-memory cache for each oplocked file + (it does <emphasis>not</emphasis> do this for + non-oplocked files). All writes that the client does not request + to be flushed directly to disk will be stored in this cache if possible. + The cache is flushed onto disk when a write comes in whose offset + would not fit into the cache or when the file is closed by the client. + Reads for the file are also served from this cache if the data is stored + within it.</para> + + <para>This cache allows Samba to batch client writes into a more + efficient write size for RAID disks (i.e. writes may be tuned to + be the RAID stripe size) and can improve performance on systems + where the disk subsystem is a bottleneck but there is free + memory for userspace programs.</para> + + <para>The integer parameter specifies the size of this cache + (per oplocked file) in bytes.</para> + + <para>Default: <command moreinfo="none">write cache size = 0</command></para> + + <para>Example: <command moreinfo="none">write cache size = 262144</command></para> + + <para>for a 256k cache size per file.</para> +</listitem> +</samba:parameter> diff --git a/source3/include/idmap.h b/source3/include/idmap.h new file mode 100644 index 0000000000..1e56519453 --- /dev/null +++ b/source3/include/idmap.h @@ -0,0 +1,56 @@ +/* + Unix SMB/CIFS implementation. + + Idmap headers + + Copyright (C) Anthony Liguori 2003 + Copyright (C) Simo Sorce 2003 + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the + Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. +*/ + +#define ID_EMPTY 0x00 +#define ID_USERID 0x01 +#define ID_GROUPID 0x02 +#define ID_OTHER 0x04 + +#define ID_TYPEMASK 0x0f + +#define ID_NOMAP 0x10 +#define ID_CACHE 0x20 + +typedef union unid_t { + uid_t uid; + gid_t gid; +} unid_t; + +/* Filled out by IDMAP backends */ +struct idmap_methods { + + /* Called when backend is first loaded */ + NTSTATUS (*init)(void); + + NTSTATUS (*get_sid_from_id)(DOM_SID *sid, unid_t id, int id_type); + NTSTATUS (*get_id_from_sid)(unid_t *id, int *id_type, const DOM_SID *sid); + NTSTATUS (*set_mapping)(const DOM_SID *sid, unid_t id, int id_type); + + /* Called when backend is unloaded */ + NTSTATUS (*close)(void); + + /* Called to dump backend status */ + void (*status)(void); +}; + diff --git a/source3/nsswitch/winbindd_idmap_tdb.c b/source3/nsswitch/winbindd_idmap_tdb.c new file mode 100644 index 0000000000..12d6972bae --- /dev/null +++ b/source3/nsswitch/winbindd_idmap_tdb.c @@ -0,0 +1,459 @@ +/* + Unix SMB/CIFS implementation. + + Winbind daemon - user related function + + Copyright (C) Tim Potter 2000 + Copyright (C) Anthony Liguori 2003 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include "winbindd.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_WINBIND + +/* High water mark keys */ +#define HWM_GROUP "GROUP HWM" +#define HWM_USER "USER HWM" + +/* idmap version determines auto-conversion */ +#define IDMAP_VERSION 2 + +/* Globals */ +static TDB_CONTEXT *idmap_tdb; + +/* convert one record to the new format */ +static int tdb_convert_fn(TDB_CONTEXT * tdb, TDB_DATA key, TDB_DATA data, + void *ignored) +{ + struct winbindd_domain *domain; + char *p; + DOM_SID sid; + uint32 rid; + fstring keystr; + fstring dom_name; + TDB_DATA key2; + + p = strchr(key.dptr, '/'); + if (!p) + return 0; + + *p = 0; + fstrcpy(dom_name, key.dptr); + *p++ = '/'; + + domain = find_domain_from_name(dom_name); + if (!domain) { + /* We must delete the old record. */ + DEBUG(0, + ("winbindd: tdb_convert_fn : Unable to find domain %s\n", + dom_name)); + DEBUG(0, + ("winbindd: tdb_convert_fn : deleting record %s\n", + key.dptr)); + tdb_delete(idmap_tdb, key); + return 0; + } + + rid = atoi(p); + + sid_copy(&sid, &domain->sid); + sid_append_rid(&sid, rid); + + sid_to_string(keystr, &sid); + key2.dptr = keystr; + key2.dsize = strlen(keystr) + 1; + + if (tdb_store(idmap_tdb, key2, data, TDB_INSERT) != 0) { + /* not good! */ + DEBUG(0, + ("winbindd: tdb_convert_fn : Unable to update record %s\n", + key2.dptr)); + DEBUG(0, + ("winbindd: tdb_convert_fn : conversion failed - idmap corrupt ?\n")); + return -1; + } + + if (tdb_store(idmap_tdb, data, key2, TDB_REPLACE) != 0) { + /* not good! */ + DEBUG(0, + ("winbindd: tdb_convert_fn : Unable to update record %s\n", + data.dptr)); + DEBUG(0, + ("winbindd: tdb_convert_fn : conversion failed - idmap corrupt ?\n")); + return -1; + } + + tdb_delete(idmap_tdb, key); + + return 0; +} + +/***************************************************************************** + Convert the idmap database from an older version. +*****************************************************************************/ +static BOOL tdb_idmap_convert(void) +{ + int32 vers = tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION"); + BOOL bigendianheader = + (idmap_tdb->flags & TDB_BIGENDIAN) ? True : False; + + if (vers == IDMAP_VERSION) + return True; + + if (((vers == -1) && bigendianheader) + || (IREV(vers) == IDMAP_VERSION)) { + /* Arrggghh ! Bytereversed or old big-endian - make order independent ! */ + /* + * high and low records were created on a + * big endian machine and will need byte-reversing. + */ + + int32 wm; + + wm = tdb_fetch_int32(idmap_tdb, HWM_USER); + + if (wm != -1) { + wm = IREV(wm); + } else + wm = server_state.uid_low; + + if (tdb_store_int32(idmap_tdb, HWM_USER, wm) == -1) { + DEBUG(0, + ("tdb_idmap_convert: Unable to byteswap user hwm in idmap database\n")); + return False; + } + + wm = tdb_fetch_int32(idmap_tdb, HWM_GROUP); + if (wm != -1) { + wm = IREV(wm); + } else + wm = server_state.gid_low; + + if (tdb_store_int32(idmap_tdb, HWM_GROUP, wm) == -1) { + DEBUG(0, + ("tdb_idmap_convert: Unable to byteswap group hwm in idmap database\n")); + return False; + } + } + + /* the old format stored as DOMAIN/rid - now we store the SID direct */ + tdb_traverse(idmap_tdb, tdb_convert_fn, NULL); + + if (tdb_store_int32(idmap_tdb, "IDMAP_VERSION", IDMAP_VERSION) == + -1) { + DEBUG(0, + ("tdb_idmap_convert: Unable to byteswap group hwm in idmap database\n")); + return False; + } + + return True; +} + +/* Allocate either a user or group id from the pool */ +static BOOL tdb_allocate_id(uid_t * id, BOOL isgroup) +{ + int hwm; + + /* Get current high water mark */ + if ((hwm = tdb_fetch_int32(idmap_tdb, + isgroup ? HWM_GROUP : HWM_USER)) == + -1) { + return False; + } + + /* Return next available uid in list */ + if ((isgroup && (hwm > server_state.gid_high)) || + (!isgroup && (hwm > server_state.uid_high))) { + DEBUG(0, + ("winbind %sid range full!\n", isgroup ? "g" : "u")); + return False; + } + + if (id) { + *id = hwm; + } + + hwm++; + + /* Store new high water mark */ + tdb_store_int32(idmap_tdb, isgroup ? HWM_GROUP : HWM_USER, hwm); + + return True; +} + +/* Get a sid from an id */ +static BOOL tdb_get_sid_from_id(int id, DOM_SID * sid, BOOL isgroup) +{ + TDB_DATA key, data; + fstring keystr; + BOOL result = False; + + slprintf(keystr, sizeof(keystr), "%s %d", isgroup ? "GID" : "UID", + id); + + key.dptr = keystr; + key.dsize = strlen(keystr) + 1; + + data = tdb_fetch(idmap_tdb, key); + + if (data.dptr) { + result = string_to_sid(sid, data.dptr); + SAFE_FREE(data.dptr); + } + + return result; +} + +/* Get an id from a sid */ +static BOOL tdb_get_id_from_sid(DOM_SID * sid, uid_t * id, BOOL isgroup) +{ + TDB_DATA data, key; + fstring keystr; + BOOL result = False; + + /* Check if sid is present in database */ + sid_to_string(keystr, sid); + + key.dptr = keystr; + key.dsize = strlen(keystr) + 1; + + data = tdb_fetch(idmap_tdb, key); + + if (data.dptr) { + fstring scanstr; + int the_id; + + /* Parse and return existing uid */ + fstrcpy(scanstr, isgroup ? "GID" : "UID"); + fstrcat(scanstr, " %d"); + + if (sscanf(data.dptr, scanstr, &the_id) == 1) { + /* Store uid */ + if (id) { + *id = the_id; + } + + result = True; + } + + SAFE_FREE(data.dptr); + } else { + + /* Allocate a new id for this sid */ + if (id && tdb_allocate_id(id, isgroup)) { + fstring keystr2; + + /* Store new id */ + slprintf(keystr2, sizeof(keystr2), "%s %d", + isgroup ? "GID" : "UID", *id); + + data.dptr = keystr2; + data.dsize = strlen(keystr2) + 1; + + tdb_store(idmap_tdb, key, data, TDB_REPLACE); + tdb_store(idmap_tdb, data, key, TDB_REPLACE); + + result = True; + } + } + + return result; +} + +/***************************************************************************** + Initialise idmap database. +*****************************************************************************/ +static BOOL tdb_idmap_init(void) +{ + SMB_STRUCT_STAT stbuf; + + /* move to the new database on first startup */ + if (!file_exist(lock_path("idmap.tdb"), &stbuf)) { + if (file_exist(lock_path("winbindd_idmap.tdb"), &stbuf)) { + char *cmd = NULL; + + /* lazy file copy */ + if (asprintf(&cmd, "cp -p %s/winbindd_idmap.tdb %s/idmap.tdb", lp_lockdir(), lp_lockdir()) != -1) { + system(cmd); + free(cmd); + } + if (!file_exist(lock_path("idmap.tdb"), &stbuf)) { + DEBUG(0, ("idmap_init: Unable to make a new database copy\n")); + return False; + } + } + } + + /* Open tdb cache */ + if (!(idmap_tdb = tdb_open_log(lock_path("idmap.tdb"), 0, + TDB_DEFAULT, O_RDWR | O_CREAT, + 0600))) { + DEBUG(0, + ("winbindd_idmap_init: Unable to open idmap database\n")); + return False; + } + + /* possibly convert from an earlier version */ + if (!tdb_idmap_convert()) { + DEBUG(0, ("winbindd_idmap_init: Unable to open idmap database\n")); + return False; + } + + /* Create high water marks for group and user id */ + if (tdb_fetch_int32(idmap_tdb, HWM_USER) == -1) { + if (tdb_store_int32 + (idmap_tdb, HWM_USER, server_state.uid_low) == -1) { + DEBUG(0, + ("winbindd_idmap_init: Unable to initialise user hwm in idmap database\n")); + return False; + } + } + + if (tdb_fetch_int32(idmap_tdb, HWM_GROUP) == -1) { + if (tdb_store_int32 + (idmap_tdb, HWM_GROUP, server_state.gid_low) == -1) { + DEBUG(0, + ("winbindd_idmap_init: Unable to initialise group hwm in idmap database\n")); + return False; + } + } + + return True; +} + +/* Get a sid from a uid */ +static BOOL tdb_get_sid_from_uid(uid_t uid, DOM_SID * sid) +{ + return tdb_get_sid_from_id((int) uid, sid, False); +} + +/* Get a sid from a gid */ +static BOOL tdb_get_sid_from_gid(gid_t gid, DOM_SID * sid) +{ + return tdb_get_sid_from_id((int) gid, sid, True); +} + +/* Get a uid from a sid */ +static BOOL tdb_get_uid_from_sid(DOM_SID * sid, uid_t * uid) +{ + return tdb_get_id_from_sid(sid, uid, False); +} + +/* Get a gid from a group sid */ +static BOOL tdb_get_gid_from_sid(DOM_SID * sid, gid_t * gid) +{ + return tdb_get_id_from_sid(sid, gid, True); +} + +/* Close the tdb */ +static BOOL tdb_idmap_close(void) +{ + if (idmap_tdb) + return (tdb_close(idmap_tdb) == 0); + return True; +} + + +/* Dump status information to log file. Display different stuff based on + the debug level: + + Debug Level Information Displayed + ================================================================= + 0 Percentage of [ug]id range allocated + 0 High water marks (next allocated ids) +*/ + +#define DUMP_INFO 0 + +static void tdb_idmap_status(void) +{ + int user_hwm, group_hwm; + + DEBUG(0, ("winbindd idmap status:\n")); + + /* Get current high water marks */ + + if ((user_hwm = tdb_fetch_int32(idmap_tdb, HWM_USER)) == -1) { + DEBUG(DUMP_INFO, + ("\tCould not get userid high water mark!\n")); + } + + if ((group_hwm = tdb_fetch_int32(idmap_tdb, HWM_GROUP)) == -1) { + DEBUG(DUMP_INFO, + ("\tCould not get groupid high water mark!\n")); + } + + /* Display next ids to allocate */ + + if (user_hwm != -1) { + DEBUG(DUMP_INFO, + ("\tNext userid to allocate is %d\n", user_hwm)); + } + + if (group_hwm != -1) { + DEBUG(DUMP_INFO, + ("\tNext groupid to allocate is %d\n", group_hwm)); + } + + /* Display percentage of id range already allocated. */ + + if (user_hwm != -1) { + int num_users = user_hwm - server_state.uid_low; + int total_users = + server_state.uid_high - server_state.uid_low; + + DEBUG(DUMP_INFO, + ("\tUser id range is %d%% full (%d of %d)\n", + num_users * 100 / total_users, num_users, + total_users)); + } + + if (group_hwm != -1) { + int num_groups = group_hwm - server_state.gid_low; + int total_groups = + server_state.gid_high - server_state.gid_low; + + DEBUG(DUMP_INFO, + ("\tGroup id range is %d%% full (%d of %d)\n", + num_groups * 100 / total_groups, num_groups, + total_groups)); + } + + /* Display complete mapping of users and groups to rids */ +} + +struct winbindd_idmap_methods tdb_idmap_methods = { + tdb_idmap_init, + + tdb_get_sid_from_uid, + tdb_get_sid_from_gid, + + tdb_get_uid_from_sid, + tdb_get_gid_from_sid, + + tdb_idmap_close, + + tdb_idmap_status +}; + +BOOL winbind_idmap_reg_tdb(struct winbindd_idmap_methods **meth) +{ + *meth = &tdb_idmap_methods; + + return True; +} |