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ksun@ABINITIO.COM

2004-Jul-19 21:11 UTC

[Samba] Samba/LDAP/PDC Questions

Greetings!

I created a Samba/OpenLDAP/smbldap-tools Primary Domain Controller. So far 
I am able to do the folowing:
        1. Using USRMGR,EXE to administrating users and groups.
        2. Adding Windows 2000, XP workstation on the fly.
        3. PDBEDIT/SMBLDAP-TOOLS/GQ all works as they suppose to.
        4. LDAP autheticate unix accounts.

However, I am not able to to the following:
        1. Cannot joint an NT machine (SP6a) into the domwin. It keeps 
saying that "the Machine account is not available or not accessible"
even
if I manually added the machine account manually using "smbldap-useradd 
NT$".
        2. Cannot use SRVMGR.EXE to add machine to domain. It complains 
"Access Denied", though I can do other things like change the
permission
of a share etc."
        3. Cannot join an existing domain after I configure it as a BDC 
with the PDC's SID. It complains "Failed to setup BDC creds".

It looks like the communication between samba and openldap is OK since I 
can managing user/group with USRMGR.EXE. However, a few questions puzzles 
me:
        1. In what situtation do I need People group as the group for 
machines?
        2. Should the PDC itself be in the ldap backend database?
        3. In the /etc/ldap.conf, if I turn on the nss staff, I cannot log 
in to the dmain anymore. It said "User does not exist".

Here are the specs of my setup:
        Fedora 2 (kernel 2.6.5-1.358)
        samba-3.0.3-5
        openldap-2.1.29-1
        smbldap-tools-0.8.5-1.1.fc2.dag

########### /etc/samba/smb.conf #########################
[global]
        workgroup = ab
        netbios name = pdc
        username map = /etc/samba/smbusers
        admin users= @"Domain Admins"
        server string = Samba Server %v
        security = user
        encrypt passwords = Yes
        min passwd length = 3
        obey pam restrictions = No
        ldap passwd sync = Yes
        time server = Yes
        mangling method = hash2

        domain logons = Yes
        os level = 65
        preferred master = Yes
        domain master = Yes
        wins support = Yes
        passdb backend = ldapsam:ldap://127.0.0.1/
        ldap admin dn = cn=Manager,dc=ab,dc=com
        ldap suffix = dc=ab,dc=com
        ldap group suffix = ou=Groups
        ldap user suffix = ou=Users
        ldap machine suffix = ou=Computers
        ldap idmap suffix = ou=Users
        ldap ssl = no
        add user script = /usr/sbin/smbldap-useradd -m "%u"
        ldap delete dn = Yes
        delete user script = /usr/sbin/smbldap-userdel "%u"
        add machine script = /usr/sbin/smbldap-useradd -w "%u"
        add group script = /usr/sbin/smbldap-groupadd -p "%g" 
        delete group script = /usr/sbin/smbldap-groupdel "%g"
        add user to group script = /usr/sbin/smbldap-groupmod -m "%u"
"%g"
        delete user from group script = /usr/sbin/smbldap-groupmod -x
"%u"
"%g"
        set primary group script = /usr/sbin/smbldap-usermod -g "%g"
"%u"
        preserve case = yes
        short preserve case = yes
        case sensitive = no

[homes]
        comment = repertoire de %U, %u
        read only = No
        create mask = 0644
        directory mask = 0775
        browseable = No

[netlogon]
        path = /home/netlogon/
        browseable = No
        read only = yes

[profiles]
        path = /home/profiles
        read only = no
        create mask = 0600
        directory mask = 0700
        browseable = No
        guest ok = Yes
        profile acls = yes
        csc policy = disable
        # next line is a great way to secure the profiles 
        force user = %U 
        # next line allows administrator to access all profiles 
        valid users = %U "Domain Admins"

##################### /etc/openldap/slap.conf 
################################
#
include         /etc/openldap/schema/core.schema
include         /etc/openldap/schema/cosine.schema
include         /etc/openldap/schema/inetorgperson.schema
include         /etc/openldap/schema/nis.schema
include         /etc/openldap/schema/redhat/autofs.schema
include         /etc/openldap/schema/samba.schema

allow bind_v2
pidfile /var/run/slapd.pid

database        ldbm
suffix          "dc=ab,dc=com"
rootdn          "cn=Manager,dc=ab,dc=com"
rootpw          some secret

directory       /var/lib/ldap

index objectClass                       eq,pres
index ou,cn,mail,surname,givenname      eq,pres,sub
index uidNumber,gidNumber,loginShell    eq,pres
index uid,memberUid                     eq,pres,sub
index nisMapName,nisMapEntry            eq,pres,sub

##################### /etc/smbldap-tools/smbldap.conf 
################################

SID="S-1-5-21-324808091-3910462042-2848579765"

slaveLDAP="127.0.0.1"
slavePort="389"
masterLDAP="127.0.0.1"
masterPort="389"

ldapTLS="0"

suffix="dc=ab,dc=com"
usersdn="ou=Users,${suffix}"
computersdn="ou=Computers,${suffix}"
groupsdn="ou=Groups,${suffix}"
idmapdn="ou=Idmap,${suffix}"
sambaUnixIdPooldn="cn=NextFreeUnixId,${suffix}"

scope="sub"
hash_encrypt="SSHA"
crypt_salt_format="%s"

userLoginShell="/bin/tcsh"
userHome="/u/%U"
userGecos="System User"
defaultUserGid="513"
defaultComputerGid="515"
skeletonDir="/etc/skel"

userSmbHome="\\pdc\%U"
userProfile=""
userHomeDrive="H:"

with_smbpasswd="0"
smbpasswd="/usr/bin/smbpasswd"

######################## /etc/ldap.conf ################################
#
host 127.0.0.1
base dc=ab,dc=com
# nss_base_passwd        ou=Users,dc=ab,dc=com?one
# nss_base_shadow        ou=Users,dc=ab,dc=com?one
# nss_base_group         ou=Group,dc=ab,dc=com?one
ssl no
pam_password md5

--- Kang Sun

Paul Gienger

2004-Jul-19 21:19 UTC

head link

[Samba] Samba/LDAP/PDC Questions

>        1. In what situtation do I need People group as the group for 
>machines?
>  
>Always.  Until they fix the bug/design issue that is.
>        2. Should the PDC itself be in the ldap backend database?
>  
>I haven't found a good reason that it 'has' to in my tests.
>        3. In the /etc/ldap.conf, if I turn on the nss staff, I cannot log 
>in to the dmain anymore. It said "User does not exist".
>  
>Can you expand on this a bit more?  From what you've said (which isn't 
much) it almost sounds like you didn't have ldap working as the posix 
auth system before you layered on samba.
>Here are the specs of my setup:
>        Fedora 2 (kernel 2.6.5-1.358)
>        samba-3.0.3-5
>        openldap-2.1.29-1
>        smbldap-tools-0.8.5-1.1.fc2.dag
>
>########### /etc/samba/smb.conf #########################
>[global]
>        workgroup = ab
>        netbios name = pdc
>        username map = /etc/samba/smbusers
>        admin users= @"Domain Admins"
>        server string = Samba Server %v
>        security = user
>        encrypt passwords = Yes
>        min passwd length = 3
>        obey pam restrictions = No
>        ldap passwd sync = Yes
>        time server = Yes
>        mangling method = hash2
>
>        domain logons = Yes
>        os level = 65
>        preferred master = Yes
>        domain master = Yes
>        wins support = Yes
>        passdb backend = ldapsam:ldap://127.0.0.1/
>        ldap admin dn = cn=Manager,dc=ab,dc=com
>        ldap suffix = dc=ab,dc=com
>        ldap group suffix = ou=Groups
>        ldap user suffix = ou=Users
>        ldap machine suffix = ou=Computers
>        ldap idmap suffix = ou=Users
>        ldap ssl = no
>        add user script = /usr/sbin/smbldap-useradd -m "%u"
>        ldap delete dn = Yes
>        delete user script = /usr/sbin/smbldap-userdel "%u"
>        add machine script = /usr/sbin/smbldap-useradd -w "%u"
>        add group script = /usr/sbin/smbldap-groupadd -p "%g" 
>        delete group script = /usr/sbin/smbldap-groupdel "%g"
>        add user to group script = /usr/sbin/smbldap-groupmod -m
"%u" "%g"
>        delete user from group script = /usr/sbin/smbldap-groupmod -x
"%u"
>"%g"
>        set primary group script = /usr/sbin/smbldap-usermod -g
"%g" "%u"
>        preserve case = yes
>        short preserve case = yes
>        case sensitive = no
>
>[homes]
>        comment = repertoire de %U, %u
>        read only = No
>        create mask = 0644
>        directory mask = 0775
>        browseable = No
>
>[netlogon]
>        path = /home/netlogon/
>        browseable = No
>        read only = yes
>
>[profiles]
>        path = /home/profiles
>        read only = no
>        create mask = 0600
>        directory mask = 0700
>        browseable = No
>        guest ok = Yes
>        profile acls = yes
>        csc policy = disable
>        # next line is a great way to secure the profiles 
>        force user = %U 
>        # next line allows administrator to access all profiles 
>        valid users = %U "Domain Admins"
>
>##################### /etc/openldap/slap.conf 
>################################
>#
>include         /etc/openldap/schema/core.schema
>include         /etc/openldap/schema/cosine.schema
>include         /etc/openldap/schema/inetorgperson.schema
>include         /etc/openldap/schema/nis.schema
>include         /etc/openldap/schema/redhat/autofs.schema
>include         /etc/openldap/schema/samba.schema
>
>allow bind_v2
>pidfile /var/run/slapd.pid
>
>database        ldbm
>suffix          "dc=ab,dc=com"
>rootdn          "cn=Manager,dc=ab,dc=com"
>rootpw          some secret
>
>directory       /var/lib/ldap
>
>index objectClass                       eq,pres
>index ou,cn,mail,surname,givenname      eq,pres,sub
>index uidNumber,gidNumber,loginShell    eq,pres
>index uid,memberUid                     eq,pres,sub
>index nisMapName,nisMapEntry            eq,pres,sub
>
>##################### /etc/smbldap-tools/smbldap.conf 
>################################
>
>SID="S-1-5-21-324808091-3910462042-2848579765"
>
>slaveLDAP="127.0.0.1"
>slavePort="389"
>masterLDAP="127.0.0.1"
>masterPort="389"
>
>ldapTLS="0"
>
>suffix="dc=ab,dc=com"
>usersdn="ou=Users,${suffix}"
>computersdn="ou=Computers,${suffix}"
>groupsdn="ou=Groups,${suffix}"
>idmapdn="ou=Idmap,${suffix}"
>sambaUnixIdPooldn="cn=NextFreeUnixId,${suffix}"
>
>scope="sub"
>hash_encrypt="SSHA"
>crypt_salt_format="%s"
>
>userLoginShell="/bin/tcsh"
>userHome="/u/%U"
>userGecos="System User"
>defaultUserGid="513"
>defaultComputerGid="515"
>skeletonDir="/etc/skel"
>
>userSmbHome="\\pdc\%U"
>userProfile=""
>userHomeDrive="H:"
>
>with_smbpasswd="0"
>smbpasswd="/usr/bin/smbpasswd"
>
>######################## /etc/ldap.conf ################################
>#
>host 127.0.0.1
>base dc=ab,dc=com
># nss_base_passwd        ou=Users,dc=ab,dc=com?one
># nss_base_shadow        ou=Users,dc=ab,dc=com?one
># nss_base_group         ou=Group,dc=ab,dc=com?one
>ssl no
>pam_password md5
>
>--- Kang Sun
>
>
>
>  
>
-- 
Paul Gienger                     Office: 701-281-1884
Applied Engineering Inc.         
Information Systems Consultant   Fax:    701-281-1322
URL: www.ae-solutions.com        mailto: pgienger@ae-solutions.com

Buchan Milne

2004-Jul-21 12:02 UTC

head link

[Samba] Re: Samba/LDAP/PDC Questions

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

| Subject:
| [Samba] Samba/LDAP/PDC Questions
| From:
| ksun@ABINITIO.COM
| Date:
| Mon, 19 Jul 2004 21:10:29 +0000 (UTC)
| To:
| samba@lists.samba.org
|
| Greetings!
|
| I created a Samba/OpenLDAP/smbldap-tools Primary Domain Controller. So
far
| I am able to do the folowing:
|         1. Using USRMGR,EXE to administrating users and groups.
|         2. Adding Windows 2000, XP workstation on the fly.
|         3. PDBEDIT/SMBLDAP-TOOLS/GQ all works as they suppose to.
|         4. LDAP autheticate unix accounts.
|
| However, I am not able to to the following:
|         1. Cannot joint an NT machine (SP6a) into the domwin. It keeps
| saying that "the Machine account is not available or not accessible"
even
| if I manually added the machine account manually using "smbldap-useradd
| NT$".
|         2. Cannot use SRVMGR.EXE to add machine to domain. It complains
| "Access Denied", though I can do other things like change the
permission
| of a share etc."
|         3. Cannot join an existing domain after I configure it as a BDC
| with the PDC's SID. It complains "Failed to setup BDC creds".
|
| It looks like the communication between samba and openldap is OK since I
| can managing user/group with USRMGR.EXE. However, a few questions puzzles
| me:
|         1. In what situtation do I need People group as the group for
| machines?

In the case where you use:
nss_base_passwd        ou=Users,dc=ab,dc=com?one

If you use:
nss_base_passwd        dc=ab,dc=com?sub

then you can have machine accounts anywhere you like under dc=ab,dc=com

Regards,
Buchan
- --
Buchan Milne                      Senior Support Technician
Obsidian Systems                  http://www.obsidian.co.za
B.Eng                                RHCE (803004789010797)
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Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iD8DBQFA/lscrJK6UGDSBKcRAlmKAJ4z1HLpysdmbleQbv3+lW7IHblOvACeJ5nn
FSzpemqu+CZdgaFGwhmXNII=tlrI
-----END PGP SIGNATURE-----

Paul Gienger

2004-Jul-26 14:23 UTC

head link

[Samba] Samba/LDAP/PDC Questions

I'm not at all experienced with the vampire command, but I believe it is 
supposed to bring passwords over.  Perhaps someone can interject here 
who does know what they're talking about???

(note: bringing back on list from an accidental, i suspect, pm)

Kang Sun wrote:
>
> Hello Paul,
>
>         I have questions on migration. Some other people like Eric 
> Bennet and Mike Brodbelt posted the similar questions. But I cannot 
> find a definite answer to this question: would vampiring using 
> samba/ldap/smbldap-tools actually migrates passwords at all?
>
>         If the "add user/machine script" from smb.conf is the
only
> tool vampiring process is calling, it certainly won't create password. 
> Below are the conversation between me and Mike. I hope you can help us.
>
> -- Kang
>
> Kang Sun wrote:
> > Hello Mike,
> >
> > I did similar things and have similar problems.
> > I looked at the ldap database, the migration did nothing but get all
the
> > names of users and machines.
> > If the smbldap-* scripts are the only things vampire process is 
> calling, I
> > don't see how would it would get  anything else.
>
> Agreed, although when migrating with a tdbsam backend, the vampire
> process will populate the tdbsam with NT passwords and suchlike, but
> also runs the useradd scripts to add the posix users, so I thought that
> there may be some other data that Samba puts into LDAP directly, not via
> invoking the scripts.
>
> The documentation from John Terpstra's book (available online at
> http://de.samba.org/samba/docs/man/Samba-Guide/migration.html#id2549828)
> suggests that the process should work with an LDAP backend, but I'm
> currently at a loss to see howm and I'm unable to replicate this, even
> on a test network, with various versions of the Idealx smbldap-tools. It
> doesn't appear to work as advertised at the moment.
>
> > After vampiring,
> >
> > 1. All the computer accounts and user accounts (posixAccount as 
> well) are
> > created just like being created by by smbldap-useradd, with the
default
> > parameters as defined in the smbldap.conf or smbldap_config.pm, eg,
> > profiles, logon scripts, etc, user name, etc.
>
> Yes, this seems to work when run from the command line. Vampiring seems
> to throw up some errors that I've not tracked down yet though.
>
> > 2. Users lost its domain membership. Every user accounts are now 
> belonging
> > to "Domain Users" group. No one in "Domain Admins"
group except
> > Administrator.
> >
> > The migration process must have done more than just calling these
> > smbldap-tools scripts, but I just don't see the effect.
> >
> > What do you see if you do
> > smbldap-usershow <userid> or <machinename>$  ?
>
> # smbldap-usershow detritus
> dn: uid=rwind,ou=People,dc=acu,dc=ac,dc=uk
> objectClass: top,inetOrgPerson,posixAccount,shadowAccount,sambaSAMAccount
> cn: rwind
> sn: rwind
> uid: rwind
> uidNumber: 1006
> gidNumber: 513
> homeDirectory: /home/rwind
> loginShell: /bin/bash
> gecos: System User
> description: System User
> userPassword: {crypt}x
> sambaPwdLastSet: 0
> sambaLogonTime: 0
> sambaLogoffTime: 2147483647
> sambaKickoffTime: 2147483647
> sambaPwdCanChange: 0
> sambaPwdMustChange: 2147483647
> displayName: System User
> sambaAcctFlags: [UX]
> sambaSID: S-1-5-21-2704678572-2069052080-1039482078-3012
> sambaLMPassword: XXX
> sambaPrimaryGroupSID: S-1-5-21-2704678572-2069052080-1039482078-513
> sambaProfilePath: \\TALITHA\profiles\rwind
> sambaHomePath: \\TALITHA\home\rwind
> sambaHomeDrive: M:
> sambaNTPassword: XXX
>
> # smbldap-usershow "quirm$"
> dn: uid=quirm$,ou=Computers,dc=acu,dc=ac,dc=uk
> objectClass: top,inetOrgPerson,posixAccount
> cn: quirm$
> sn: quirm$
> uid: quirm$
> uidNumber: 1013
> gidNumber: 515
> homeDirectory: /dev/null
> loginShell: /bin/false
> description: Computer
>
> > or smbldap-groupshow <groupid>  ?
>
> # smbldap-groupshow "Domain Admins"
> dn: cn=Domain Admins,ou=Groups,dc=acu,dc=ac,dc=uk
> objectClass: posixGroup,sambaGroupMapping
> gidNumber: 512
> cn: Domain Admins
> memberUid: Administrator
> description: Netbios Domain Administrators
> sambaSID: S-1-5-21-2704678572-2069052080-1039482078-512
> sambaGroupType: 2
> displayName: Domain Admins
>
>
> So all that seems to have worked. It's just that some of the
information
> hasn't migrated across, and in the context of a transparent migration
> off the NT4 server, the information that hasn't propagated is a
> showstopper. Despite reading all the docs I can lay hands on, I still
> can't see why, and the vampire process is not transparent to me - the
> docs just assume it'll work completely or not at all - there's
nothing
> to tell one how to try and troubleshoot it if it half works, which is
> what's happening for me.
>
> Mike.
>
> ForwardSourceID:NT00009A52    
>
> "Eric J Bennett" <eric.bennett@itouch.com.au> wrote in
message
> news:<40FB1140.6020103@itouch.com.au>...
> > Hi all,
> >
> > I'm really lost here, I do net rpc vampire and it works perfectly
for
> > user accounts (sets NTLM pass etc) and creates machine accounts, but
> > fails to allocate their password hashes, I think it's calling the
> > smbldap-useradd utility to add accounts for machines, but I don't
see
> > why this would make the hashes transfer for users but not machines?
> >
> > Any help much appreciated.
> >
> > Regards
> > Eric Bennett
> >
> > --
> > To unsubscribe from this list go to the following URL and read the
> > instructions:  http://lists.samba.org/mailman/listinfo/samba
> >
> ForwardSourceID:NT00009A72     

-- 
Paul Gienger                     Office: 701-281-1884
Applied Engineering Inc.         
Information Systems Consultant   Fax:    701-281-1322
URL: www.ae-solutions.com        mailto: pgienger@ae-solutions.com

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