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+
+The Samba 2.2 PDC FAQ
+
+David Bannon
+
+ La Trobe University
+ _________________________________________________________________
+ _________________________________________________________________
+
+ Comments, corrections and additions to <D.Bannon@latrobe.edu.au>
+
+ This is the FAQ for Samba 2.2 as an NTDomain controller. This document
+ is derived from the origional FAQ that was built and maintained by
+ Gerald Carter from the early days of Samba NTDomain development up
+ until recently. It is now being updated as significent changes are
+ made to 2.2.0.
+
+ Please note it does not apply to Samba2.2alpha0, Samba2.2alpha1, Samba
+ 2.0.7, TNG nor HEAD branch.
+
+ I'll repeat, it does not apply to the current snapshot [ftp
+ mirror]:/pub/samba/alpha/samba-2.2.0-alpha1.tar.gz, only to the to the
+ current cvs.
+
+ Also available is a Samba 2.2 PDC HowTo that takes you, step by step,
+ over the process of setting up a very basic Samba 2.2 Primary Domain
+ Controller
+
+ Note: Please read the Introduction for the current state of play.
+
+ Table of Contents
+ 1. Introduction
+
+ State of Play
+ Introduction
+
+ 2. General Information
+
+ What can we do ?
+
+ What can Samba Primary Domain Controller (PDC) do ?
+ Can I have a Windows 2000 client logon to a Samba
+ controlled domain?
+
+ What's the status of print spool (spoolss) support in the
+ NTDOM code?
+
+ CVS
+
+ What are the different Samba branches available in CVS ?
+ What are the CVS commands ?
+
+ 3. Establishing Connections
+
+ How do I get my NT4 or W2000 Workstation to login to the
+ Samba controlled Domain?
+
+ What is a 'machine account' ?
+ "The machine account for this computer either does not
+ exist or is not accessable."
+
+ How do I create machine accounts manually ?
+ I cannot include a '$' in a machine name.
+ I get told "You already have a connection to the
+ Domain...." when creating a machine account.
+
+ I get told "Cannot join domain, the credentials supplied
+ conflict with an existing set.."
+
+ "The system can not log you on (C000019B)...."
+
+ 4. User Account Management
+
+ Domain Admins
+
+ How do I configure an account as a domain administrator?
+
+ Profiles
+
+ Why is it bad to set "logon path = \\%N\%U\profile" in
+ smb.conf? ?
+
+ Why are all the users listed in the "domain admin users"
+ using the same profile?
+
+ The roaming profiles do not seem to be updating on the
+ server.
+
+ Policies
+
+ What are 'Policies' ?.
+ I can't get system policies to work.
+ What about Windows NT Policy Editor ?
+ Can Win95 do Policies ?
+
+ Passwords
+
+ What is password sync and should I use it ?
+ How do I get remote password (unix and SMB) changing
+ working ?
+
+ 5. Miscellaneous
+
+ What editor can I use in DOS/Windows that won't mess with
+ my unix EOF
+
+ How do I get 'User Manager' and 'Server Manager'
+ The time setting from a Samba server does not work.
+ "trust account xxx should be in DOMAIN_GROUP_RID_USERS"
+ How do I get my samba server to become a member ( not PDC )
+ of an NT domain?
+
+ 6. Troubleshooting and Bug Reporting
+
+ Diagnostic tools
+
+ What are some diagnostics tools I can use to debug the
+ domain logon process and where can I find them?
+
+ How do I install 'Network Monitor' on an NT Workstation or
+ a Windows 9x box?
+
+ What other help can I get ?
+
+ URLs and similar
+ How do I get help from the mailing lists ?
+ How do I get off the mailing lists ?
+ _________________________________________________________________
+
+Chapter 1. Introduction
+
+State of Play
+
+ It should be noted that 2.2.0 in its pre-release form still has a few
+ problems, I'll try and keep this section current while things are
+ still dynamic. At the time of this update (November 13, 2000) the
+ current state of play is :
+
+ Comments here about W2K joining the domain apply only to Samba 2.2
+ from the CVS after November 27th. The 'snapshot' release
+ Samba2.2alpha1 does not work !!! See below on how to get a CVS tree.
+
+ Client Side creation of Machine accounts does work but is not
+ complete. Firstly, the add user script runs as the user who's name was
+ entered, not as root. Secondly, the machine name passed to the script
+ (%U) has an underscore at the end, not a '$'. One alternative is to
+ use %m and add the $. This method is documented in the HowTo. And
+ thirdly, it does not work with NT4ws.
+
+ A W2K machine can join the domain. See the HowTo which explains the
+ process. The methods described are 'work arounds' and should be
+ regarded as temporary. Although I (drb) have tested these procedures a
+ number of people have had difficulty so there may be other issues at
+ work. JFM is aware of these problems and will attend to them when he
+ can.
+
+ A Domain Admin account is required and at present it appears that only
+ root is a suitable candidate.
+
+ Much of the related code does work. For example, if an NT is removed
+ from the domain and then rejoins, the Create a Computer Account in the
+ Domain dialog will let you reset the smbpasswd. That is you don't need
+ to do it from the unix box. However, at the present, you do need to
+ have root as an administrator and use the root user name and password.
+
+ Actually I'm not sure that last paragraph is correct ....
+
+ Policies do work on a W2K machine. MS says that recent builds of W2K
+ dont observe an NT policy but it appears it does in 'legacy' mode.
+ _________________________________________________________________
+
+Introduction
+
+ This FAQ was origionally compiled by Jerry Carter (gc) chiefly dealing
+ with the 'old head' version of Samba and its NTDomain facilities. It
+ is being rewritten by David Bannon (drb) so that it addresses more
+ accurately the Samba 2.2 planned for release late 2000.
+
+ This document probably still contains some material that does not
+ apply to Samba 2.2 but most (all?) of the really misleading stuff has
+ been removed. Some issues are not dealt with or are dealt with badly.
+ Please send corrections and additions to David Bannon at
+ D.Bannon@latrobe.edu.au
+
+ Hopefully, as we all become familiar with the Samba 2.2 as a PDC this
+ document will become much more usefull.
+ _________________________________________________________________
+
+Chapter 2. General Information
+
+What can we do ?
+
+What can Samba Primary Domain Controller (PDC) do ?
+
+ If you wish to have Samba act as a PDC for Windows NT 3.51.and 4.0 or
+ W2000 client, then you will need to obtain the 2.2.0 version,
+ currently in pre-release. Release of a stable, full featured Samba PDC
+ is currently slated for version 3.0.
+
+ The following is a list of included features currently in Samba 2.2:
+
+ * The ability to act as a limited PDC for Windows NT and W2000
+ clients. This includes adding NT and W2K machines to the domain
+ and authenticating users logging into the domain.
+ * Domain account can be viewed using the User Manager for Domains
+ ????
+ * Viewing resources on the Samba PDC via the Server Manager for
+ Domains from the NT client. ??
+ * Windows 95 clients will allow user level security to be set but
+ will not currently allow browsing of accounts.
+ * Machine account password updates.
+ * Changing of user passwords from an NT client.
+ * Partial support for Windows NT group and username mapping.
+ * Support for a LDAP password database backend.
+ * Printing.
+
+ These things are note expected to work in the forseeable future
+ * Trust relationships
+ * PDC and BDC integration
+ * Windows NT ACLs (on the Samba shares)
+ * Offer a list of domain users to User Manager for Domains (or the
+ Security Tab etc).
+ _________________________________________________________________
+
+Can I have a Windows 2000 client logon to a Samba controlled domain?
+
+ The 2.2 release branch of Samba supports Windows 2000 domain clients
+ in legacy mode, ie as if the PDC is a NTServer, not a W2K server.
+ _________________________________________________________________
+
+What's the status of print spool (spoolss) support in the NTDOM code?
+
+ The implementation of support for SPOOLSS pipe is complete and it will
+ be available in the 2.2.0 release. This means that Samba will support
+ the automatic downloading of printer drivers for Windows NT clients
+ just as it currently does for Windows 9x clients.
+ _________________________________________________________________
+
+CVS
+
+ CVS is a programme (publically available) that the Samba developers
+ use to maintain the central source code. Non developers can get access
+ to the source in a read only capacity. Many flavours of unix now
+ arrive with cvs installed.
+ _________________________________________________________________
+
+What are the different Samba branches available in CVS ?
+
+ You can find out more about obtaining Samba's via anonymous CVS from
+ http://pserver.samba.org/samba/cvs.html".
+
+ There are basically four branches to watch at the moment :
+
+ HEAD
+ Samba 3.0 ? This code boasts all the main development work in
+ Samba. Two things that most people are not aware of which live
+ in the HEAD branch code are winbind NSS module and Tim Potter's
+ VFS implementation. Due to its developmental nature, its not
+ really suitable for production work.
+
+ SAMBA_2_0
+ This branch contains the current stable release release. At the
+ moment it contains 2.0.7, a version that will do some limited
+ PDC stuff. If you are really going to do PDC things then I
+ (drb) suggest that you consider 2.2 instead.
+
+ SAMBA_2_2
+ The next stable release, currently in a 'alpha' form. It
+ provides the Samba developers, testers and interested people
+ with an approximation of what is to come. This document
+ addresses only SAMBA_2_2.
+
+ SAMBA_TNG
+ This branch is no longer maintained from the Samba sites.
+ Please see http://www.samba-tng.org/. It has been requested
+ that questions about TNG are not posted to the regular Samba
+ mailing lists including samba-ntdom and samba-technical.
+ _________________________________________________________________
+
+What are the CVS commands ?
+
+ See http://pserver.samba.org/samba/cvs.html
+
+ To get the Samba 2.2 version, tag SAMBA_2_2 you would do :
+ * For example : cd /usr/local/src/
+ * cvs -d :pserver:cvs@pserver.samba.org:/cvsroot login
+ * When prompted enter a password of cvs
+ * cvs -d :pserver:cvs@pserver.samba.org:/cvsroot co -r SAMBA_2_2
+ samba
+
+ Then to update that directory at some later time,
+ * cd /usr/local/src/samba
+ * cvs -d :pserver:cvs@pserver.samba.org:/cvsroot login
+ * When prompted enter a password of 'cvs'.
+ * cvs update -d -P
+ _________________________________________________________________
+
+Chapter 3. Establishing Connections
+
+How do I get my NT4 or W2000 Workstation to login to the Samba controlled
+Domain?
+
+ There is a comprehensive Samba PDC HowTo accessable from the samba web
+ site under 'Documentation'. Its currently located at
+ http://bioserve.latrobe.edu.au/samba. Read it.
+ _________________________________________________________________
+
+What is a 'machine account' ?
+
+ Every NT, W2K or Samba machine that joins a Samba controlled domain
+ must be known to the Samba PDC. There are two entries required, one in
+ (typically) /etc/passwd and the other in (typically)
+ /usr/local/samba/private/smbpasswd. Under some circumstances these
+ entries are made manually, the HowTo discusses ways of creating them
+ automatically.
+ _________________________________________________________________
+
+"The machine account for this computer either does not exist or is not
+accessable."
+
+ When I try to join the domain I get the message "The machine account
+ for this computer either does not exist or is not accessable". Whats
+ wrong ?
+
+ This problem is caused by the PDC not having a suitable machine
+ account. If you are using the add user script = method to create
+ accounts then this would indicate that it has not worked. Ensure the
+ domain admin user system is working.
+
+ Alternatively if you are creating account entries manually then they
+ have not been created correctly. Make sure that you have the entry
+ correct for the machine account in smbpasswd file on the Samba PDC. If
+ you added the account using an editor rather than using the smbpasswd
+ utility, make sure that the account name is the machine netbios name
+ with a '$' appended to it ( ie. computer_name$ ). There must be an
+ entry in both /etc/passwd and the smbpasswd file. Some people have
+ reported that inconsistent subnet masks between the Samba server and
+ the NT client have caused this problem. Make sure that these are
+ consistent for both client and server.
+ _________________________________________________________________
+
+How do I create machine accounts manually ?
+
+ This was the only option until recently, now in version 2.2 better
+ means are available. You might still need to do it manually for a
+ couple of reasons. A machine account consists of two entries (assuming
+ a standard install and /etc/passwd use), one in /etc/passwd and the
+ other in /usr/local/samba/private/smbpasswd. The /etc/passwd entry
+ will list the machine name with a $ appended, won't have a passwd,
+ will have a null shell and no home directory. For example a machine
+ called 'doppy' would have an /etc/passwd entry like this :
+
+ doppy$:x:505:501:NTMachine:/dev/null:/bin/false
+
+ On a linux system for example, you would typically add it like this :
+
+ adduser -g machines -c NTMachine -d /dev/null -s /bin/false -n doppy$
+
+ Then you need to add that entry to smbpasswd, assuming you have a
+ suitable path to the smbpasswd programme, do this :
+
+ smbpasswd -a -m doppy$
+
+ The entry will be created with a well known password, so any machine
+ that says its doppy could join the domain as long as it gets in first.
+ So don't create the accounts any earlier than you need them.
+ _________________________________________________________________
+
+I cannot include a '$' in a machine name.
+
+ A 'machine name' in (typically) /etc/passwd consists of the machine
+ name with a '$' appended. FreeBSD (and other BSD systems ?) won't
+ create a user with a '$' in their name.
+
+ The problem is only in the program used to make the entry, once made,
+ it works perfectly. So create a user without the '$' and use vipw to
+ edit the entry, adding the '$'. Or create the whole entry with vipw if
+ you like, make sure you use a unique uid !
+ _________________________________________________________________
+
+I get told "You already have a connection to the Domain...." when creating a
+machine account.
+
+ This happens if you try to create a machine account from the machine
+ itself and use a user name that does not work (for whatever reason)
+ and then try another (possibly valid) user name. Exit out of the
+ network applet to close the initial connection and try again.
+
+ Further, if the machine is a already a 'member of a workgroup' that is
+ the same name as the domain you are joining (bad idea) you will get
+ this message. Change the workgroup name to something else, it does not
+ matter what, reboot, and try again.
+ _________________________________________________________________
+
+I get told "Cannot join domain, the credentials supplied conflict with an
+existing set.."
+
+ This is the same basic problem as mentioned above, "You already have a
+ connection..."
+ _________________________________________________________________
+
+"The system can not log you on (C000019B)...."
+
+ I joined the domain successfully but after upgrading to a newer
+ version of the Samba code I get the message, "The system can not log
+ you on (C000019B), Please try a gain or consult your system
+ administrator" when attempting to logon.
+
+ This occurs when the domain SID stored in private/WORKGROUP.SID is
+ changed. For example, you remove the file and smbd automatically
+ creates a new one. Or you are swapping back and forth between versions
+ 2.0.7, TNG and the HEAD branch code (not recommended). The only way to
+ correct the problem is to restore the original domain SID or remove
+ the domain client from the domain and rejoin.
+ _________________________________________________________________
+
+Chapter 4. User Account Management
+
+Domain Admins
+
+How do I configure an account as a domain administrator?
+
+ See the NTDom HowTo.
+ _________________________________________________________________
+
+Profiles
+
+Why is it bad to set "logon path = \\%N\%U\profile" in smb.conf? ?
+
+ Sometimes Windows clients will maintain a connection to the \\homes\ (
+ or [%U] ) share even after the user has logged out. Consider the
+ following scenario.
+
+ * user1 logs into the Windows NT machine. Therefore the [homes]
+ share is set to \\server\user1.
+ * user1 works for a while and then logs out.
+ * user2 logs into the same Windows NT machine.
+
+ However, since the NT box has maintained a connection to [homes] which
+ was previously set to \\server\user1, when the operating system
+ attempts to get the profile and if it can read users1's profile, will
+ get it otherwise it will return an error. You get the picture.
+
+ A better solution is to use a separate [profiles] share and set the
+ "logon path = \\%N\profiles\%U"
+
+ Note: Is this still a problem ????
+ _________________________________________________________________
+
+Why are all the users listed in the "domain admin users" using the same
+profile?
+
+ You are using a very very old development version of Samba. Upgrade.
+ _________________________________________________________________
+
+The roaming profiles do not seem to be updating on the server.
+
+ There can be several reasons for this.
+
+ Make sure that the time on the client and the PDC are synchronized.
+ You can accomplish this by executing a net time \\server /set /yes
+ replacing server with the name of your PDC (or another synchronized
+ SMB server). See about Setting Time
+
+ Make sure that the logon path is writeable by the user and make sure
+ that the connection to the logon path location is by the current user.
+ Sometimes Windows client do not drop the connection immediately upon
+ logoff.
+
+ Some people have reported that the logon path location should also be
+ browseable. I (GC) have yet to emperically verify this, but you can
+ try.
+ _________________________________________________________________
+
+Policies
+
+What are 'Policies' ?.
+
+ When a user logs onto the domain via a client machine, the PDC sends
+ the client machine a list of things contained in the 'policy' (if it
+ exists). This list may do things like suppress a splach screen, format
+ the dates the way you like them or perhaps remove locally stored
+ profiles.
+
+ On a samba PDC this list is obtained from a file called ntconfig.pol
+ and located in the [netlogon]share. The file is created with a policy
+ editor and must be readable by anyone and writeable by only root. See
+ below for how to get a suitable editor.
+ _________________________________________________________________
+
+I can't get system policies to work.
+
+ There are two possible reasons for system policies not functioning
+ correctly. Make sure that you have the following parameters set in
+ smb.conf
+ [netlogon]
+ ....
+ locking = no
+ public = no
+ browseable = yes
+ ....
+
+
+ A policy file must be in the [netlogon] share and must be readable by
+ everyone and writeable by only root. The file must be created by an
+ NTServer Policy Editor.
+
+ Last time I (drb) looked in the source, it was looking for
+ ntconfig.pol first then several other combinations of upper and lower
+ case. People have reported success using NTconfig.pol, NTconfig.POL
+ and ntconfig.pol. These are the case settings that I (GC) use with the
+ filename ntconfig.pol
+ case sensitive = no
+ case preserve = yes
+ default case = yes
+
+ _________________________________________________________________
+
+What about Windows NT Policy Editor ?
+
+ To create or edit ntconfig.pol you must use the NT Server Policy
+ Editor, poledit.exe which is included with NT Server but not NT
+ Workstation. There is a Policy Editor on a NTws but it is not suitable
+ for creating Domain Policies. Further, although the Windows 95 Policy
+ Editor can be installed on an NT Workstation/Server, it will not work
+ with NT policies because the registry key that are set by the policy
+ templates. However, the files from the NT Server will run happily
+ enough on an NTws. You need poledit.exe, common.adm and winnt.adm. It
+ is convenient to put the two *.adm files in c:\winnt\inf which is
+ where the binary will look for them unless told otherwise. Note also
+ that that directory is 'hidden'.
+
+ The Windows NT policy editor is also included with the Service Pack 3
+ (and later) for Windows NT 4.0. Extract the files using
+ servicepackname /x, ie thats Nt4sp6ai.exe /x for service pack 6a. The
+ policy editor, poledt.exe and the associated template files (*.adm)
+ should be extracted as well. It is also possible to downloaded the
+ policy template files for Office97 and get a copy of the policy
+ editor. Another possible location is with the Zero Administration Kit
+ available for download from Microsoft.
+ _________________________________________________________________
+
+Can Win95 do Policies ?
+
+ Install the group policy handler for Win9x to pick up group policies.
+ Look on the Win98 CD in \tools\reskit\netadmin\poledit. Install group
+ policies on a Win9x client by double-clicking grouppol.inf. Log off
+ and on again a couple of times and see if Win98 picks up group
+ policies. Unfortunately this needs to be done on every Win9x machine
+ that uses group policies....
+
+ If group policies don't work one reports suggests getting the updated
+ (read: working) grouppol.dll for Windows 9x. The group list is grabbed
+ from /etc/group.
+ _________________________________________________________________
+
+Passwords
+
+What is password sync and should I use it ?
+
+ NTws users can change their domain password by pressing Ctrl-Alt-Del
+ and choosing 'Change Password'. By default however, this does not
+ change the unix password (typically in /etc/passwd or /etc/shadow). In
+ lots of situations thats OK, for example :
+
+ * The server is only accessible to the user via samba.
+ * Pam_smb or similar is installed so other applications still refer
+ to the samba password.
+
+ But sometimes you really do need to maintain two seperate password
+ databases and there are good reasons to keep then in sync. Trying to
+ explain to users that they need to change their passwords in two
+ seperate places or use two seperate passwords is not fun.
+
+ However do understand that setting up password sync is not without
+ problems either. The chief difficulty is the interface between Samba
+ and the passwd command, it can be a fiddle to set up and if the
+ password the user has entered fails, the resulting errors are
+ ambiguously reported and the user is confused. Further, you need to
+ take steps to ensure that users only ever change their passwords via
+ samba (or use smbpasswd), otherwise they will only be changing the
+ unix password.
+ _________________________________________________________________
+
+How do I get remote password (unix and SMB) changing working ?
+
+ Have a practice changing a user's password (as root) to see what
+ discussion takes place and change the text in the 'passwd chat' line
+ below as necessary. The line as shown works for recent RH Linux but
+ most other systems seem to like to do something different. The '*' is
+ a wild card and will match anything (or nothing).
+
+ Add these lines to smb.conf under [Global]
+
+
+ unix password sync = true
+ passwd program = /usr/bin/passwd %u
+ passwd chat = *password* %n\n *password* %n\n *successful*
+
+ As mentioned above, the change to the unix password happens as root,
+ not as the user, as is indicated in ~/smbd/chgpasswd.c If you are
+ using NIS, the Samba server must be running on the NIS master machine.
+ _________________________________________________________________
+
+Chapter 5. Miscellaneous
+
+What editor can I use in DOS/Windows that won't mess with my unix EOF
+
+ There are a number of Windows or DOS based editors that will
+ understand, and leave intact, the unix eof (as opposed to a DOS
+ CL/LF). List members suggested :
+
+ * UltraEdit at www.ultraedit.com
+ * VI for windows at home.snafu.de/ramo/WinViEn.htm
+ * The author prefers PFE at www.lancs.ac.uk/people/cpaap/pfe/ but
+ its no longer being developed...
+ _________________________________________________________________
+
+How do I get 'User Manager' and 'Server Manager'
+
+ Since I don't need to buy an NT Server CD now, how do I get the 'User
+ Manager for Domains', the 'Server Manager' ?
+
+ Microsoft distributes a version of these tools called nexus for
+ installation on Windows 95 systems. The tools set includes
+ * Server Manager
+ * User Manager for Domains
+ * Event Viewer
+
+ Click here to download the archived file
+ ftp://ftp.microsoft.com/Softlib/MSLFILES/NEXUS.EXE
+
+ The Windows NT 4.0 version of the 'User Manager for Domains' and
+ 'Server Manager' are available from Microsoft via ftp from
+ ftp://ftp.microsoft.com/Softlib/MSLFILES/SRVTOOLS.EXE
+ _________________________________________________________________
+
+The time setting from a Samba server does not work.
+
+ If it works OK when you log on as Domain Admin then the problem is
+ that ordinary users don't have permission to change the time. (The
+ system is running with their permission at logon time.) This is not a
+ Samba problem, you will have the same problem where ever you connect.
+ You can give 'everyone' permission to change the time from the User
+ Manager.
+
+ Anyone know what the registry settings are so this could be done with
+ a Policy ?
+ _________________________________________________________________
+
+"trust account xxx should be in DOMAIN_GROUP_RID_USERS"
+
+ I keep getting the message "trust account xxx should be in
+ DOMAIN_GROUP_RID_USERS." in the logs. What do I need to do?
+
+ You are using one of the old development versions. Upgrade. (The
+ message is unimportant, was a reminder to a developer)
+ _________________________________________________________________
+
+How do I get my samba server to become a member ( not PDC ) of an NT domain?
+
+ In a domain that has a number of servers you only need one password
+ database. The machines that don't have their own ask the PDC to check
+ for them. This will work fine for a domain controlled by either a
+ Samba or NT machine. The following lines in smb.conf are typical,
+ 'password server' points to the samba machine (or an NT) that has the
+ password list :
+
+
+ [global]
+ ...
+ security = domain
+ workgroup = { Put your domain name here }
+ password server = { Put the ip of the PDC here }
+ encrypt passwords = yes
+ ...
+
+ The samba server in question will have to 'join the domain', that
+ requires the domain controller to have a machine account for it. This
+ is no different to the machine account requirements to allow a NTws to
+ join the domain. For example, if we want a unix box called sleepy to
+ ask the PDC called grumpy to do its authentication then grumpy will
+ need an entry in its smbpasswd (assuming it's also samba) that starts
+ with sleepy$. It would have to be created manually.
+
+ If the domain is controlled by an NTServer then the "Server Manager
+ for Domains" tool must be used to add 'sleepy' to the domain list.
+
+ In either case we then join the domain. If the domain is called forest
+ then on sleepy we would join the domain by typing :
+
+ smbpasswd -j forest
+
+ Note that the directory where the smbpasswd file would be located
+ should exist as this is where smbd will generate the MACHINE.SID file.
+ This might be /usr/local/samba/private/FOREST.SLEEPY.SID and it
+ contains the trust account password for the domain member. The
+ permissions are (and should remain) "rw-------
+
+ Note the Samba Servers without the password list will most likely
+ still need an account for each user, this means a line in its
+ /etc/passwd. Because authentication is being handled at the domain
+ level the /etc/passwd line does not need a password. If the shares
+ being offered are not user specific, ie a common (read only ?) area or
+ perhaps just printing then the user's /etc/passwd does not need a home
+ directory. A typical line in /etc/passwd for a server that allows
+ domain users to connect to the samba shares but does not offer a home
+ share ('cos that's on the PDC) and does not allow logon to the unix
+ prompt would be like this :
+jblow:x:542:100:Joe Blow:/dev/null:/bin/false
+
+ * When removing those 'dummy' users, watch the 'remove user'
+ scripts, some OS think they should remove a users directory even
+ when its not owned by the user !
+ * The username map = parameter might help you to avoid having all
+ those accounts created.
+ * You should investigate the smb.conf parameter 'add user script',
+ it will be used to create accounts on secondary servers when that
+ account already exists on the PDC. Very nice. Something like :
+ [Global]
+ ....
+ add user script = /usr/sbin/adduser -n -g users -c User -d /dev/null -s /bi
+n/false %U
+ ....
+ _________________________________________________________________
+
+Chapter 6. Troubleshooting and Bug Reporting
+
+Diagnostic tools
+
+What are some diagnostics tools I can use to debug the domain logon process
+and where can I find them?
+
+ One of the best diagnostic tools for debugging problems is Samba
+ itself. You can use the -d option for both smbd and nmbd to specifiy
+ what 'debug level' at which to run. See the man pages on smbd, nmbd
+ and smb.conf for more information on debugging options. The debug
+ level can range from 1 (the default) to around 100 but a debug level
+ of about 20 will normally help you find any errors that samba is
+ encountering. Another helpful method of debugging is to compile samba
+ using the gcc -g flag. This will include debug information in the
+ binaries and allow you to attch gdb to the running smbd / nmbd
+ process. In order to attach gdb to an smbd process for an NT
+ workstation, first get the workstation to make the connection.
+ Pressing ctrl-alt-delete and going down to the domain box is
+ sufficient (at least, on the first time you join the domain) to
+ generate a 'LsaEnumTrustedDomains'. Thereafter, the workstation
+ maintains an open connection, and therefore there will be an smbd
+ process running (assuming that you haven't set a really short smbd
+ idle timeout) So, in between pressing ctrl alt delete, and actually
+ typing in your password, you can gdb attach and continue.
+
+ Some usefull samba commands worth investigating:
+ * testparam | more
+ * smbclient -L //{netbios name of server}
+
+ An SMB enabled version of tcpdump is available from
+ ftp://samba.org/pub/samba/tcpdump-smb/
+
+ Capconvert is a small C program for translating output from
+ tcpdump-smb to CAP format that can be read by netmon. You will need to
+ use the raw output from tcp dump ( ie. tcpdump -w output.dump ). Good
+ news! Now you can convert Solaris' snoop output as well. The C source
+ code for snoop2cap is available for download.
+
+ For tracing things on the Microsoft Windows NT, Network Monitor (aka.
+ netmon) is available on the Microsoft Developer Network CD's, the
+ Windows NT Server install CD and the SMS CD's. The version of netmon
+ that ships with SMS allows for dumping packets between any two
+ computers (ie. placing the network interface in promiscuous mode). The
+ version on the NT Server install CD will only allow monitoring of
+ network traffic directed to the local NT box and broadcasts on the
+ local subnet.
+ _________________________________________________________________
+
+How do I install 'Network Monitor' on an NT Workstation or a Windows 9x box?
+
+ Installing netmon on an NT workstation requires a couple of steps. The
+ following are for installing Netmon V4.00.349, which comes with
+ Microsoft Windows NT Server 4.0, on Microsoft Windows NT Workstation
+ 4.0. The process should be similar for other version of Windows NT /
+ Netmon. You will need both the Microsoft Windows NT Server 4.0 Install
+ CD and the Workstation 4.0 Install CD.
+
+ Initially you will need to install 'Network Monitor Tools and Agent'
+ on the NT Server. To do this
+
+ * Goto Start - Settings - Control Panel - Network - Services - Add
+ * Select the 'Network Monitor Tools and Agent' and click on 'OK'.
+ * Click 'OK' on the Network Control Panel.
+ * Insert the Windows NT Server 4.0 install CD when prompted.
+
+ At this point the Netmon files should exist in
+ %SYSTEMROOT%\System32\netmon\*.*. Two subdirectories exist as well,
+ parsers\ which contains the necessary DLL's for parsing the netmon
+ packet dump, and captures\.
+
+ In order to install the Netmon tools on an NT Workstation, you will
+ first need to install the 'Network Monitor Agent' from the Workstation
+ install CD.
+
+ * Goto Start - Settings - Control Panel - Network - Services - Add
+ * Select the 'Network Monitor Agent' and click on 'OK'.
+ * Click 'OK' on the Network Control Panel.
+ * Insert the Windows NT Workstation 4.0 install CD when prompted.
+
+ Now copy the files from the NT Server in
+ %SYSTEMROOT%\System32\netmon\*.* to %SYSTEMROOT%\System32\netmon\*.*
+ on the Workstation and set permissions as you deem appropriate for
+ your site. You will need administrative rights on the NT box to run
+ netmon.
+
+ To install Netmon on a Windows 9x box install the network monitor
+ agent from the Windows 9x CD (\admin\nettools\netmon). There is a
+ readme file located with the netmon driver files on the CD if you need
+ information on how to do this. Copy the files from a working Netmon
+ installation.
+ _________________________________________________________________
+
+What other help can I get ?
+
+ There are many sources of information available in the form of mailing
+ lists, RFC's and documentation. The docs that come with the samba
+ distribution contain very good explanations of general SMB topics such
+ as browsing.
+ _________________________________________________________________
+
+URLs and similar
+
+ * Home of Samba site http://samba.org. We have a mirror near you !
+ * The Development document on the Samba mirrors might mention your
+ problem. If so, it might mean that the developers are working on
+ it.
+ * Ignacio Coupeau has a very comprehesive look at LDAP with Samba at
+ http://www.unav.es/cti/ldap-smb-howto.html Be a little carefull
+ however, I suspect that it does not specificly address samba
+ 2.2.x. The HEAD pre-2.1 may possibly be the best stream to look
+ at.
+ * Lars Kneschke's site covers Samba-TNG at
+ http://www.kneschke.de/projekte/samba_tng, but again, a lot of it
+ does not apply to the main stream Samba.
+ * Although 2.0.7 has almost had its day as a PDC, I (drb) will keep
+ the 2.0.7 PDC pages at http://bioserve.latrobe.edu.au/samba going
+ for a while yet.
+ * Misc links to CIFS information http://samba.org/cifs/
+ * NT Domains for Unix http://mailhost.cb1.com/~lkcl/ntdom/
+ * FTP site for older SMB specs:
+ ftp://ftp.microsoft.com/developr/drg/CIFS/
+
+ There are a number of documents that no longer appear to live at their
+ origional home. Any one know where the following may be found ?
+ * CIFS/E Browser Protocol draft-leach-cifs-browser-spec-00.txt
+ * CIFS Remote Administration Protocol
+ draft-leach-cifs-rap-spec-00.txt
+ * CIFS Logon and Pass Through Authentication
+ draft-leach-cifs-logon-spec-00.txt
+ * A Common Internet File System (CIFS/1.0) Protocol
+ draft-leach-cifs-v1-spec-01.txt
+ * CIFS Printing Specification draft-leach-cifs-print-spec-00.txt
+ * RFC1001 (March '87) Protocol standard for a NetBIOS service on a
+ TCP/UDP transport: Concepts and methods.
+ http://ds.internic.net/rfc/rfc1001.txt
+ * RFC1002 (March '87) Protocol standard for a NetBIOS service on a
+ TCP/UDP transport: Detailed specifications.
+ http://ds.internic.net/rfc/rfc1002.txt
+ * Microsoft's main CIFS page:
+ http://www.microsoft.com/workshop/networking/cifs/
+ _________________________________________________________________
+
+How do I get help from the mailing lists ?
+
+ There are a number of Samba related mailing lists. Go to
+ http://samba.org, click on your nearest mirror and then click on
+ Support and then click on Samba related mailing lists.
+
+ For questions relating to Samba TNG go to http://www.samba-tng.org/ It
+ has been requested that you don't post questions about Samba-TNG to
+ the main stream Samba lists.
+
+ If you post a message to one of the lists please observe the following
+ guide lines :
+ * Always remember that the developers are volunteers, they are not
+ paid and they never guarantee to produce a particular feature at a
+ particular time. Any time lines are 'best guess' and nothing more.
+ * Always mention what version of samba you are using and what
+ operating system its running under. You should probably list the
+ relevant sections of your smb.conf file, at least the options in
+ [global] that affect PDC support.
+ * In addition to the version, if you obtained Samba via CVS mention
+ the date when you last checked it out.
+ * Try and make your question clear and brief, lots of long,
+ convoluted questions get deleted before they are completely read !
+ Don't post html encoded messages (if you can select colour or font
+ size its html).
+ * If you run one of those niffy 'I'm on holidays' things when you
+ are away, make sure its configured to not answer mailing lists.
+ * Don't cross post. Work out which is the best list to post to and
+ see what happens, ie don't post to both samba-ntdom and
+ samba-technical. Many people active on the lists subscribe to more
+ than one list and get annoyed to see the same message two or more
+ times. Often someone will see a message and thinking it would be
+ better dealt with on another, will forward it on for you.
+ * You might include partial log files written at a debug level set
+ to as much as 20. Please don't send the entire log but enough to
+ give the context of the error messages.
+ * (Possibly) If you have a complete netmon trace ( from the opening
+ of the pipe to the error ) you can send the *.CAP file as well.
+ * Please think carefully before attaching a document to an email.
+ Consider pasting the relevant parts into the body of the message.
+ The samba mailing lists go to a huge number of people, do they all
+ need a copy of your smb.conf in their attach directory ?
+ _________________________________________________________________
+
+How do I get off the mailing lists ?
+
+ To have your name removed from a samba mailing list, go to the same
+ place you went to to get on it. Go to http://samba.org, click on your
+ nearest mirror and then click on Support and then click on Samba
+ related mailing lists. Or perhaps see here
+
+ Please don't post messages to the list asking to be removed, you will
+ just be refered to the above address (unless that process failed in
+ some way...)