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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...)
diff --git a/docs/textdocs/samba-pdc-howto.txt b/docs/textdocs/samba-pdc-howto.txt
new file mode 100644
index 0000000000..0073d2947b
--- /dev/null
+++ b/docs/textdocs/samba-pdc-howto.txt
@@ -0,0 +1,703 @@
+
+The Samba 2.2 PDC HowTo
+
+David Bannon
+
+ La Trobe University
+ _________________________________________________________________
+ _________________________________________________________________
+
+ Comments, corrections and additions to <D.Bannon@latrobe.edu.au>
+
+ This document explains how to setup Samba as a Primary Domain
+ Controller and applies to version 2.2.0. Before using these functions
+ make sure you understand what the controller can and cannot do. Please
+ read the sections below in the Introduction. As 2.2.0 is incrementally
+ updated this document will change or become out of date very quickly,
+ make sure you are reading the most current version.
+
+ Please note this document does not apply to Samba2.2alpha0,
+ Samba2.2alpha1, Samba 2.0.7, TNG nor HEAD branch.
+
+ It does apply to the current (post November 27th) cvs.
+
+ Also available is an updated version of Jerry Carter's NTDom FAQ that
+ will answer lots of the special 'tuning' questions that are not
+ covered here. Over the next couple of weeks some of the items here
+ will be moved to the FAQ.
+
+ Table of Contents
+ 1. Introduction
+
+ What can we do ?
+ What can't we do ?
+
+ 2. Installing
+
+ Start Up Script
+ Config File
+
+ A sample conf file
+ PDC Config Parameters
+
+ Special directories
+
+ 3. User and Machine Accounts
+
+ Logon Accounts
+ Machine Accounts
+ Joining the Domain
+ User Accounts
+ Domain Admin Accounts
+
+ 4. Profiles, Policies and Logon Scripts
+
+ Profiles
+ Policies
+ Logon Scripts
+
+ 5. Passwords and Authentication
+
+ Syncing Passwords
+ Using PAM
+ Authenticating other Samba Servers
+
+ 6. Background
+
+ History
+ The Future
+ Getting further help
+ _________________________________________________________________
+
+Chapter 1. Introduction
+
+ This document will show you one way of making Version 2.2.0 of Samba
+ perform some of the tasks of a NT Primary Domain Controller. The
+ facilities described are built into Samba as a result of development
+ work done over a number of years by a large number of people. These
+ facilities are only just beginning to be officially supported and
+ although they do appear to work reliably, if you use them then you
+ take the risks upon your self. This document does not cover the
+ developmental versions of Samba, particularly Samba-TNG
+
+ Note that Samba 2.0.7 supports significently less of the NT Domain
+ facilities compared with 2.2.0
+
+ This document does not replace the text files DOMAIN_CONTROL.txt,
+ DOMAIN.txt (by John H Terpstra) or NTDOMAIN.txt (by Luke Kenneth
+ Casson Leighton). Those documents provide more detail and an insight
+ to the development cycle and should be considered 'further reading'.
+ _________________________________________________________________
+
+What can we do ?
+
+ * Permit 'domain logons' for Win95/98, NT4 and W2K workstations from
+ one central password database. WRT W2K, please see the section
+ about adding machine accounts and the Intro in the FAQ.
+ * Grant Administrator privileges to particular domain users on an NT
+ or W2K workstation.
+ * Apply policies from a domain policy file to NT and W2K (?)
+ workstation.
+ * Run the appropriate logon script when a user logs on to the domain
+ .
+ * Maintain a user's local profile on the server.
+ * Validate a user using another system via smb (such as smb_pam) and
+ soon winbind (?).
+ _________________________________________________________________
+
+What can't we do ?
+
+ * Become or work with a Backup Domain Controller (a BDC).
+ * Participate in any sort of trust relationship (with either Samba
+ or NT Servers).
+ * Offer a list of domain users to User Manager for Domains on the
+ Security Tab etc).
+ * Be a W2K type of Domain Controller. Samba PDC will behave like an
+ NT PDC, W2K workstations connect in legacy mode.
+ _________________________________________________________________
+
+Chapter 2. Installing
+
+ Installing consists of the usual download, configure, make and make
+ install process. These steps are well documented elsewhere. The FAQ
+ discusses getting pre-release versions via CVS. Then you need to
+ configure the server.
+ _________________________________________________________________
+
+Start Up Script
+
+ Skip this section if you have a working Samba already. Everyone has
+ their own favourite startup script. Here is mine, offered with no
+ warrantee at all !
+
+
+ #!/bin/sh
+ # Script to control Samba server, David Bannon, 14-6-96
+ #
+ #
+ PATH=/bin:/usr/sbin:/usr/bin
+ export PATH
+ case "$1" in
+ 'start')
+ if [ -f /usr/local/samba/bin/smbd ]
+ then
+ /usr/local/samba/bin/smbd -D
+ /usr/local/samba/bin/nmbd -D
+ echo "Starting Samba Server"
+ fi
+ ;;
+ 'conf')
+ if [ -f /usr/local/samba/lib/smb.conf ]
+ then
+ vi /usr/local/samba/lib/smb.conf
+ fi
+ ;;
+ 'pw')
+ if [ -f /usr/local/samba/private/smbpasswd ]
+ then
+ vi /usr/local/samba/private/smbpasswd
+ fi
+ ;;
+ 'who')
+ /usr/local/samba/bin/smbstatus -b
+ ;;
+ 'restart')
+ psline=`/bin/ps x | grep smbd | grep -v grep`
+
+ if [ "$psline" != "" ]
+ then
+ while [ "$psline" != "" ]
+ do
+ psline=`/bin/ps x | fgrep smbd | grep -v grep`
+ if [ "$psline" ]
+ then
+ set -- $psline
+ pid=$1
+ /bin/kill -HUP $pid
+ echo "Stopped $pid line = $psline"
+ sleep 2
+ fi
+ done
+ fi
+ echo "Stopped Samba servers"
+ ;;
+ 'stop')
+ psline=`/bin/ps x | grep smbd | grep -v grep`
+
+ if [ "$psline" != "" ]
+ then
+ while [ "$psline" != "" ]
+ do
+ psline=`/bin/ps x | fgrep smbd | grep -v grep`
+ if [ "$psline" ]
+ then
+ set -- $psline
+ pid=$1
+ /bin/kill -9 $pid
+ echo "Stopped $pid line = $psline"
+ sleep 2
+ fi
+ done
+ fi
+ echo "Stopped Samba servers"
+ psline=`/bin/ps x | grep nmbd | grep -v grep`
+ if [ "$psline" ]
+ then
+ set -- $psline
+ pid=$1
+ /bin/kill -9 $pid
+ echo "Stopped Name Server "
+ fi
+ echo "Stopped Name Servers"
+ ;;
+ *)
+ echo "usage: samba {start | restart |stop | conf | pw | who}"
+ ;;
+ esac
+
+
+ Use this script, or some other one, you will need to ensure its used
+ while the machine is booting. (This typically involves /etc/rc.d,
+ we'll be assuming that there is a script called samba in
+ /etc/rc.d/init.d further down in this document.)
+ _________________________________________________________________
+
+Config File
+
+A sample conf file
+
+ Here is a fairly minimal config file to do PDC. It will also make the
+ server become the browse master for the specified domain (not
+ necessary but usually desirable). You will need to change only two
+ parameters to make this file work, wins server and workgroup, plus you
+ will need to put your own name (not mine!) in the domain admin users
+ fields. Some of the parameters are discussed further down this
+ document.
+
+ Assuming you have used the default install directories, this file
+ should appear as /usr/local/samba/lib/smb.conf. It should not be
+ writable by anyone except root.
+
+ Note: The 'add user script' parameter is a work-around, watch for
+ changes !
+
+
+
+ [global]
+ security = user
+ status = yes
+ workgroup = { Your domain name here }
+ wins server = { ip of a wins server if you have one }
+ encrypt passwords = yes
+ domain logons =yes
+ logon script = scripts\%U.bat
+ domain admin users = root dbannon andrew
+ add user script = /usr/sbin/adduser -n -g machines -c Machine -d /dev/n
+ull -s /bin/false %m$
+ guest account = ftp
+ share modes=no
+ os level=65
+ [homes]
+ guest ok = no
+ read only = no
+ create mask = 0700
+ directory mask = 0700
+ oplocks = false
+ locking = no
+ [netlogon]
+ path = /usr/local/samba/netlogon
+ writeable = no
+ guest ok = no
+
+ _________________________________________________________________
+
+PDC Config Parameters
+
+ There are a huge range of parameters that may appear in a smb.conf
+ file. Some that may be of interest to a PDC are :
+
+ add user script
+ This parameter specifies a script (or program) that will be run
+ to add a user to the system. Here it is being used to add a
+ machine, not a user. This is probably not very nice and may
+ change. But it does work !
+
+ For this example, I have a group called 'machines', entries can
+ be added to /etc/passwd using a programme called /usr/adduser
+ and the other parameters are chosen as suitable for a machine
+ account. Works for RH Linux, your system may require changes.
+
+ domain admin users = user1 users2
+ This parameter specifies a unix user who will be granted admin
+ privileges on a NT workstation when logged onto that
+ workstation. See the section called Domain Admin Accounts.
+
+ encrypt passwords = yes
+ This parameter must be 'yes' to allow any of the recent service
+ pack NTs to logon. There are some reg hacks that turn off
+ encrypted passwords on the NTws itself but if you are going to
+ use the smbpasswd system (and you should) you must use
+ encrypted passwords.
+
+ logon script = scripts\%U.bat
+ This will make samba look for a logon script named after the
+ user (eg joeblow.bat). See the section further on called Logon
+ Scripts
+
+ Note: Note that the slash is like this '\', not like this '/'. NT
+ is happy with both, win95 is not !
+
+ logon path
+ Lets you specify where you would like users profiles kept. The
+ default, that is in the users home directory, does encourage a
+ bit of fiddling.
+ _________________________________________________________________
+
+Special directories
+
+ You need to create a couple of special files and directories. Its nice
+ to have some of the binaries handy too, so I create links to them.
+ Assuming you have used the default samba location and have not changed
+ the locations mentioned in the sample config file, do the following :
+
+
+ mkdir /usr/local/samba/netlogon
+ mkdir /usr/local/samba/netlogon/scripts
+ mkdir /usr/local/samba/private
+ touch /usr/local/samba/private/smbpasswd
+ chmod go-rwx /usr/local/samba/private/smbpasswd
+ cd /usr/local/sbin
+ ln -s /usr/local/samba/bin/smbpasswd
+ ln -s /usr/local/samba/bin/smbclient
+ ln -s /etc/rc.d/init.d/samba
+
+ Make sure permissions are appropriate !
+
+ OK, if you have used the scripts above and have a path to where the
+ links are do this to start up the Samba Server :
+
+ samba start
+
+ Instead, you might like to reboot the machine to make sure that you
+ got the init stuff right. Any way, a quick look in the logs
+ /usr/local/samba/var/log.smbd and /usr/local/samba/var/log/nmbd will
+ give you an idea of what's happening. Assuming all is well, lets
+ create some accounts...
+ _________________________________________________________________
+
+Chapter 3. User and Machine Accounts
+
+Logon Accounts
+
+ This section is very nearly out of date already ! It appears that
+ while you are reading it, Jean Francois Micou is making it redundant !
+ Jean Francois is adding facilities to add users (via User Manager) and
+ machines (when joining the domain) and it looks like these facilities
+ will make it into the official release of 2.2.
+
+ Every user and NTws (and other samba servers) that will be on the
+ domain must have its own passwd entry in both /etc/passwd and
+ /usr/local/samba/private/smbpasswd . The /etc/passwd entry is really
+ only to reserve a user ID. The NT encrypted password is stored in
+ /usr/local/samba/private/smbpasswd. (Note that win95/98 machines don't
+ need an account as they don't do any security aware things.)
+
+ Samba 2.2 will now create these entries for us. Carefull set up is
+ required and there may well be some changes to this system before its
+ released.
+ _________________________________________________________________
+
+Machine Accounts
+
+ Note: There is an entry in the ntdom FAQ explaining how to create
+ machine entries manually.
+
+ At present to have the machine accounts created when a machine joins
+ the domain a number of conditions must be met :
+
+ Only root can do it !
+ There must be an entry in /usr/local/samba/private/smbpasswd
+ for root and root must be mentioned in domain admins. This may
+ be fixed some time in the future so any 'domain admin' can do
+ it. If you don't like having root as a windows logon account,
+ make the machine entries manually (both of them).
+
+ Use the add user script
+ Again, this looks a bit like a 'work around'. Use a suitable
+ command line to add a machine account see above, and pass it
+ %m$, that is %m to get machine name plus the '$'. Now, this
+ means you cannot use the add user script to really add users
+ ....
+
+ Only for W2K
+ This automatic creation of machine accounts does not work for
+ NT4ws at present. Watch this space.
+ _________________________________________________________________
+
+Joining the Domain
+
+ You must have either added the machine account entries manually (NT4
+ ws) or set up the automatic system (W2K), see Machine Accounts before
+ proceeding.
+
+ Windows NT
+
+ + (this step may not be necessary some time in the near
+ future). On the samba server that is the PDC, add a machine
+ account manually as per the instructions in the FAQ Then give
+ the command smbpasswd -a -m {machine} substituting in the
+ client machine name.
+ + Logon to the NTws in question as a local admin, go to the
+ Control Panel, Network IdentificationTag.
+ + Press the Change button.
+ + Enter the Domain name (from the 'Workgroup' parameter,
+ smb.conf) in the Domain Field.
+ + Press OK and after a few seconds you will get a 'Welcome to
+ Whatever Domain'. Allow to reboot.
+
+ Windows 2000
+
+ + Logon to the W2k machine as Administrator, go to the Control
+ Panel and double click on Network and Dialup Connections.
+ + Pull down the Advanced menu and choose Network
+ Identification. Press Properties .
+ + Choose Domain and enter the domain name. Press 'OK'.
+ + Now enter a user name and password for a Domain Admin (Who
+ must be root until a pre-release bug is fixed) and press
+ 'OK'.
+ + Wait for the confirmation, reboot when prompted.
+
+ To remove a W2K machine from the domain, follow the first two
+ steps then choose Workgroup, enter a work group name (or just
+ WORKGROUP) and follow the prompts.
+ _________________________________________________________________
+
+User Accounts
+
+ Again, doing it manually (cos' the auto way is not working
+ pre-release). In our simple case every domain user should have an
+ account on the PDC. The account may have a null shell if they are not
+ allowed to log on to the unix prompt. Again they need an entry in both
+ the /etc/passwd and /usr/local/samba/private/smbpasswd. Again a
+ password is not necessary in /etc/passwd but the location of the home
+ directory is honoured. To make an entry for a user called Joe Blow you
+ would typically do the following :
+
+ adduser -g users -c 'Joe Blow' -s /bin/false -n joeblow
+
+ smbpasswd -a joeblow
+
+ And you will prompted to enter a password for Joe. Ideally he will be
+ hovering over your shoulder and will, when asked, type in a password
+ of his choice. There are a number of scripts and systems to ease the
+ migration of users from somewhere to samba. Better start looking !
+ _________________________________________________________________
+
+Domain Admin Accounts
+
+ Certain operations demand that the logged on user has Administrator
+ privileges, typically installing software and doing maintenance tasks.
+ It is very simple to appoint some users as Domain Admins, most likely
+ yourself. Make sure you trust the appointee !
+
+ Samba 2.2 recognizes particular users as being domain admins and tells
+ the NTws when it thinks that it has got one logged on. In the smb.conf
+ file we declare that the Domain Admin users = user1 user2. Any user
+ mentioned here will be treated as a Domain Admin by a NTws when logged
+ onto the Domain. They will have full Administrator rights including
+ the rights to change permissions on files and run the system utilities
+ such as Disk Administrator.
+
+ Further, and this is very new, they will be allowed to create a new
+ machine account when first connecting a new NT or W2K machine to the
+ domain. At present, ie pre-release, only a Domain Admin who also
+ happens to be root can do so.
+ _________________________________________________________________
+
+Chapter 4. Profiles, Policies and Logon Scripts
+
+Profiles
+
+ NT Profiles should work if you have followed the setup so far. A
+ user's profile contains a whole lot of their personal settings, the
+ contents of their desktop, personal 'My Documents' and so on. When
+ they log off, all of the profile is copied to their directory on the
+ server and is downloaded again when they logon on again, possibly on
+ another client machine.
+
+ Sounds great but can be a bit of a bug bear sometimes. Users let their
+ profiles get too big and then complain about how long it takes to log
+ on each time. This sample setup only supports NT profiles, rumor has
+ it that it is also possible to do the same on Win95, my users don't
+ know and I'm not telling them.
+
+ Note: There is more info about Profiles (including for W95/98) in
+ the FAQ.
+ _________________________________________________________________
+
+Policies
+
+ Policies are an easy way to make or enforce specific characteristics
+ across your network. You create a ntconfig.pol file and every time
+ someone logs on with their NTws, the settings you put in ntconfig.pol
+ are applied to the NTws. Typical setting are things like making the
+ date appear the way you want it (none of these 2 figure years here) or
+ maybe suppressing one of the splash screens. Perhaps you want to set
+ the NTws so it does not keep users profiles on the local machine.
+ Cool. The only problem is making the ntconfig.pol file itself. You
+ cannot use the policy editor that comes with NTws.
+
+ Note: See the FAQ for pointers on how to get a suitable Policy
+ Editor.
+
+ The Policy Editor (and associated files) will create a ntconfig.pol
+ file using the parameters Microsoft thought of and parameters you
+ specify by making your own template file.
+
+ In our example configuration here, Samba will expect to find the
+ ntconfig.pol file in /usr/local/samba/netlogon. Needless to say (I
+ hope !), it is vitally important that ordinary users don't have write
+ permission to the Policy files.
+ _________________________________________________________________
+
+Logon Scripts
+
+ In the sample config file above there is a line logon script =
+ scripts\%U.bat
+
+ Note: Note that the slash is like this '\' not like this '/'. NT is
+ happy with both, win95 is not !
+
+ This allows you to run a dos batch file every time someone logs on.
+ The batch file is located on the server, in the sample install
+ mentioned here, its in /usr/local/samba/netlogon/scripts and is named
+ after the user with .bat appended, eg Joe Blow's script is called
+ /usr/local/samba/netlogon/scripts/joeblow.bat.
+
+ Note: There is a suggestion that user names longer than 8
+ characters may cause problems with some systems being unable to run
+ logon scripts. This is confirmed in earlier versions when
+ connecting using W95, comments about other combinations ??
+
+ You could use a line like this logon script = default.bat and samba
+ will supply /usr/local/samba/netlogon/default.bat for any client and
+ every user. Maybe you could use %m and get a client machine dependant
+ logon script. You get the idea...
+
+ Note that the file is a dos batch file not a Unix script. It runs dos
+ commands on the client computer with the logon user's permissions. It
+ must be a dos file with each line ending with the dos cr/lf not a nice
+ clean newline. Generally, its best to create the initial file on a DOS
+ system and copy it across.
+
+ There is lots of very clever uses of the Samba replaceable variables
+ such ( %U = user, %G = primary group, %H = client machine, see the
+ 'man 5 smb.conf') to give you control over which script runs when a
+ particular person logs on. (Gee, it would be nice to have a
+ default.bat run when nothing else is available.)
+
+ Again, it is vitally important that ordinary users don't have write
+ permission to other peoples, or even probably their own, logon script
+ files.
+
+ A typical logon script is reproduced below. Note that it runs separate
+ commands for win95 and NT, that's because NT has slightly different
+ behaviour when using the net use .. command. Its useful for lots of
+ other situations too. I don't know what syntax to use for win98, I
+ don't use it here.
+
+
+ rem Default logon script, create links to this file.
+
+ net time \\bioserve /set /yes
+ @echo off
+ if %OS%.==Windows_NT. goto WinNT
+
+ :Win95
+ net use k: \\trillion\bio_prog
+ net use p: \\bcfile\homes
+ goto end
+ :WinNT
+ net use k: \\trillion\bio_prog /persistent:no
+ net use p: \\bcfile\homes /persistent:no
+
+ :end
+ _________________________________________________________________
+
+Chapter 5. Passwords and Authentication
+
+ So far our configuration assumes that ordinary users don't have unix
+ logon access. A change to the adduser line above would allow unix
+ logon but it would be with passwords that may be different from the NT
+ logon. Clearly that won't suit everyone. Trying to explain to users
+ that they need to change their passwords in two seperate places is not
+ fun. Further, even if they cannot do a unix logon there are other
+ processes that might require authentication. We have a nice securely
+ encrypted password in /usr/local/samba/private/smbpasswd, why not use
+ it ?
+ _________________________________________________________________
+
+Syncing Passwords
+
+ Yes, its possible and seems the easiest way (initially anyway). The
+ FAQ details how to do so in the sections What is password sync and
+ should I use it ? and How do I get remote password (unix and SMB)
+ changing working ?
+ _________________________________________________________________
+
+Using PAM
+
+ Pam enabled systems have a much better solution available. The Samba
+ PDC server will offer to authenticate domain users to other processes
+ (either on this server or on the domain). With a suitable pam stack
+ such as Pam_smb you can get any pam aware application looking to the
+ samba password and can leave the password field in /etc/shadow or
+ /etc/passwd invalid.
+ _________________________________________________________________
+
+Authenticating other Samba Servers
+
+ 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.
+
+ To do so the Samba machine must be told to refer to the PDC and where
+ the PDC is. See the section in the NTDom FAQ called How do I get my
+ samba server to become a member ( not PDC ) of an NT domain?
+ _________________________________________________________________
+
+Chapter 6. Background
+
+History
+
+ It might help you understand the limitations of the PDC in Samba if
+ you read something of its history. Well, the history as I understand
+ it anyway.
+
+ For many years the Samba team have been developing Samba, some time
+ ago a number of people, possibly lead by Luke Leighton started
+ contributing NT PDC stuff. This was added to the 'head' stream (that
+ would eventually become the next version) and later to a seperate
+ stream (NTDom). They did so much that eventually this development
+ stream was so mutated that it could not be merged back into the main
+ stream and was abandoned towards the end of 1999. And that was very
+ sad because many users, myself include had become heavily dependant on
+ the NTController facilities it offered. Oh well...
+
+ The NTDom team continued on with their new found knowledge however and
+ built the TNG stream. Intended to be carefully controlled so that it
+ can be merged back into the main stream and benefiting from what they
+ learnt, it is a very different product to the origional NTDom product.
+ However, for a number of reasons, the merge did not take place and now
+ TNG is being developed at http://www.samba-tng.org.
+
+ Now, the NTDom things that the main strean 2.0.x version does is based
+ more on the old (initial version) abandoned code than on the TNG
+ ideas. It appears that version 2.2.0 will also include an improved
+ version of the 2.0.7 domain controller charactistics, not the TNG
+ ways. The developers have indicated that 2.2.0 will be further
+ developed incrementally and the ideas from TNG incorporated into it.
+
+ One more little wriggle is worth mentioning. At one stage the NTDom
+ stream was called Samba 2.1.0-prealpha and similar names. This is most
+ unfortunate because at least one book published advises people who
+ want to use NTDom Samba to get version 2.1.0 or later. As main stream
+ Samba will soon be called 2.2.0 and NOT officially supporting NTDom
+ Controlling functions, the potential for confusion is certainly there.
+ _________________________________________________________________
+
+The Future
+
+ There is a document on the Samba mirrors called 'Development' . It
+ offers the 'best guess' of what is planned for future releases of
+ Samba.
+
+ The future of Samba as a Primary Domain Controller appears rosie,
+ however be aware that its the future, not the present. The developers
+ are strongly committed to building a full featured PDC into Samba but
+ it will take time. If this version does not meet your requirements
+ then you should consider (in no particular order) :
+
+ * Wait. No, we don't know how long. Repeated asking won't help.
+ * Investigate the development versions, TNG perhaps or HEAD where
+ new code is being added all the time. Realise that development
+ code is often unstable, poorly documented and subject to change.
+ You will need to use cvs to download development versions.
+ * Join one of the Samba mailing lists so that you can find out what
+ is happening on the 'bleeding edge'.
+ _________________________________________________________________
+
+Getting further help
+
+ This document cannot possibly answer all your questions. Please
+ understand that its very likely that someone has been confrounted by
+ the same problem that you have. The FAQ discusses a number of possible
+ paths to take to get further help :
+
+ * Documents on the Samba Sites.
+ * Other web sites.
+ * Mailing list.
+
+ There is some discussion about guide lines for using the Mailing Lists
+ on the accompanying FAQ, please read them before posting.