[Samba] Winbind / Samba auth problem after username change

Wed Sep 7 14:31:03 UTC 2016

Tried that too. Now when joining the domain I get:

gss_init_sec_context failed with [ Miscellaneous failure (see text): Server (krbtgt/LOCAL at NLI.LOCAL) unknown]
kinit succeeded but ads_sasl_spnego_gensec_bind(KRB5) failed: An internal error occurred.
Failed to join domain: failed to connect to AD: An internal error occurred.

> -----Ursprüngliche Nachricht-----
> Von: samba [mailto:samba-bounces at lists.samba.org] Im Auftrag von L.P.H.
> van Belle via samba
> Gesendet: Mittwoch, 7. September 2016 16:03
> An: samba at lists.samba.org
> Betreff: Re: [Samba] Winbind / Samba auth problem after username change
>
> I would suggest.
>
> Stop samba and winbind
>
> Backup
> /etc/krb5.keytab
> /var/lib/samba
> /var/cache/samba
>
> Remove everything in :
> /var/lib/samba
> /var/cache/samba
> And remove :
> /etc/krb5.keytab
>
>
> Put in this config ( from Rowlands suggestion. )
> Can you try this smb.conf:
>
> [global]
> workgroup = MYDOMAIN
> realm = MYDOMAIN.local
> netbios name = vmu09tcse01
> dedicated keytab file = /etc/krb5.keytab
> kerberos method = secrets and keytab
> server string = Samba AD Client Version %v
> security = ads
> winbind enum users = yes
> winbind enum groups = yes
> winbind use default domain = yes
> winbind refresh tickets = Yes
> template shell = /bin/bash
> domain master = no
> local master = no
> preferred master = no
>
> # Default idmap config used for BUILTIN and local windows
> accounts/groups
> idmap config *:backend = tdb
> idmap config *:range = 2000-9999
>
> # idmap config for domain MYDOMAIN
> idmap config MYDOMAIN:backend = rid
> idmap config MYDOMAIN:range = 10000-99999
>
> # For ACL support on domain member
> vfs objects = acl_xattr
> map acl inherit = Yes
> store dos attributes = Yes
>
>
>
> Join the domain again.
>
> Test again.
>
> Greetz,
>
> Louis
>
>
> > -----Oorspronkelijk bericht-----
> > Van: samba [mailto:samba-bounces at lists.samba.org] Namens Julian Zielke
> via
> > samba
> > Verzonden: woensdag 7 september 2016 15:52
> > Aan: samba at lists.samba.org
> > Onderwerp: Re: [Samba] Winbind / Samba auth problem after username
> change
> >
> > BTW I just tried the getent command again and it gets even weirder:
> >
> >
> >
> > # getent passwd ren_test4
> >
> > ren_test4:*:12521:10513:ren_test4:/home/NLI.LOCAL/ren_test4:/bin/bash
> >
> >
> >
> > then did another getent after a couple of seconds:
> >
> >
> >
> > # getent passwd ren_test4
> >
> > ren_test3:*:12521:10513:ren_test3:/home/NLI.LOCAL/ren_test3:/bin/bash
> >
> >
> >
> > This is...well..I have no damn clue XD
> >
> >
> >
> > > -----Ursprüngliche Nachricht-----
> >
> > > Von: Julian Zielke
> >
> > > Gesendet: Mittwoch, 7. September 2016 15:19
> >
> > > An: 'samba at lists.samba.org' <samba at lists.samba.org>
> >
> > > Betreff: WG: [Samba] Winbind / Samba auth problem after username
> change
> >
> > >
> >
> > > I just did a cp -p *.ldb to a backup directory and restarted the
> > services.
> >
> > > Of course I didn't delete it since I don't know whether this action
> > would be
> >
> > > fatal.
> >
> > >
> >
> > >
> >
> > > > > -----Ursprüngliche Nachricht-----
> >
> > > > > Von: samba [mailto:samba-bounces at lists.samba.org] Im Auftrag von
> >
> > > > > Rowland Penny via samba
> >
> > > > > Gesendet: Mittwoch, 7. September 2016 15:10
> >
> > > > > An: samba at lists.samba.org<mailto:samba at lists.samba.org>
> >
> > > > > Betreff: Re: [Samba] Winbind / Samba auth problem after username
> >
> > > > change
> >
> > > > >
> >
> > > > > On Wed, 7 Sep 2016 12:46:39 +0000
> >
> > > > > Julian Zielke <jzielke at next-level-
> > integration.com<mailto:jzielke at next-level-integration.com>> wrote:
> >
> > > > >
> >
> > > > > > Btw, before it looked like this:
> >
> > > > > >
> >
> > > > > > # ll
> >
> > > > > > total 7148
> >
> > > > > > drwxr-xr-x 2 root root    4096 Sep  7 14:36 ./
> >
> > > > > > drwxr-xr-x 7 root root    4096 Sep  7 14:38 ../
> >
> > > > > > -rw-r--r-- 1 root root 1286144 Sep  7 14:34 DC=NLI,DC=LOCAL.ldb
> >
> > > > > > -rw------- 1 root root   24576 Sep  7 13:11 netlogon_creds_cli.tdb
> >
> > > > > > -rw------- 1 root root  421888 Sep  7 13:09 passdb.tdb
> >
> > > > > > -rw------- 1 root root     696 Jan 19  2016 randseed.tdb
> >
> > > > > > -rw-r--r-- 1 root root 1286144 Sep  7 13:08 sam.ldb
> >
> > > > > > -rw-r--r-- 1 root root 1286144 Sep  7 14:29 sam.ldbobjectClass=*
> >
> > > > > > -rw------- 1 root root 1286144 Sep  7 10:50 secrets.ldb
> >
> > > > > > -rw------- 1 root root  430080 Sep  4 10:06 secrets.tdb
> >
> > > > > > -rw-r--r-- 1 root root 1286144 Sep  7 13:09 *-tdb
> >
> > > > > >
> >
> > > > > >
> >
> > > > > >
> >
> > > > > > Von: Julian Zielke
> >
> > > > > > Gesendet: Mittwoch, 7. September 2016 14:41
> >
> > > > > > An: 'Rowland Penny'
> <rpenny at samba.org<mailto:rpenny at samba.org>>
> >
> > > > > > Cc: samba at lists.samba.org<mailto:samba at lists.samba.org>
> >
> > > > > > Betreff: AW: [Samba] Winbind / Samba auth problem after
> username
> >
> > > > > > change
> >
> > > > > >
> >
> > > > > >
> >
> > > > > > Well, I always get 0 results, whether using cn, full username,
> >
> > > > > > wildcards, another existing and working user etc.
> >
> > > > > >
> >
> > > > > >
> >
> > > > > >
> >
> > > > > > # cat /etc/passwd | grep 'ren_test'
> >
> > > > > >
> >
> > > > > > returns nothing
> >
> > > > > >
> >
> > > > > >
> >
> > > > > >
> >
> > > > > > # wbinfo -u | grep 'ren_test'
> >
> > > > > >
> >
> > > > > > returns: ren_test4
> >
> > > > > >
> >
> > > > > >
> >
> > > > > >
> >
> > > > > > I also created a backup of all those ldb files and restarted the
> >
> > > > > > samba service. Now there's no new sam.ldb but a file looking
> > similar
> >
> > > > > > to it.
> >
> > > > > >
> >
> > > > >
> >
> > > > > How are you backing up the ldb files ?
> >
> > > > > Once you have you backed up sam.ldb, are you deleting it ?
> >
> > > > >
> >
> > > > > Rowland
> >
> > > > >
> >
> > > > > --
> >
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> >
> > > > > instructions:  https://lists.samba.org/mailman/options/samba
> >
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Important Note: The information contained in this e-mail is confidential. It is intended solely for the addressee. Access to this e-mail by anyone else is unauthorized. If you are not the intended recipient, any form of disclosure, reproduction, distribution or any action taken or refrained from in reliance on it, is prohibited and may be unlawful. Please notify the sender immediately. We also would like to inform you that communication via e-mail over the internet is insecure because third parties may have the possibility to access and manipulate e-mails.