[Samba] Samba43 Kerberos issues

[Rowland penny]

On 22/03/16 05:24, Juan Garcia wrote:
> Hi There,
>
> I have an odd issue with my samba4 infrastructure, I have two servers 
> both replicating fine.
> DC1 passes all tests documented here: 
> https://wiki.samba.org/index.php/Setup_a_Samba_Active_Directory_Domain_Controller
> Except the following test:
>
> # kinit administrator
> # kinit: krb5_get_init_creds: Client 
> (administrator at DOMAIN.NAME.COM.AU) unknown

The wiki page says run 'kinit administrator at DOMAIN.NAME.COM.AU', does 
this work ?
What is in /etc/krb5.conf ?

What is in /etc/resolv.conf ?
Does each DC use the other for DNS ?

Can you post your smb.conf files ?

Rowland

>
> And in the logs I have found the following:
>
> # kinit for SERVER1$@DOMAIN.NAME.COM.AU failed (Client not found in 
> Kerberos database) SERVER1 is my DC1, not sure why it has a $ right 
> before the @ is this normal?
> I get the same error when running
>
> # samba_dnsupdate --verbose --all-names
> IPs: ['0.0.0.0'] -> shows the real DC1 ip address
> Traceback (most recent call last):
>   File "/usr/local/sbin/samba_dnsupdate", line 621, in <module>
>     get_credentials(lp)
>   File "/usr/local/sbin/samba_dnsupdate", line 125, in get_credentials
>     raise e
> RuntimeError: kinit for SERVER1$@DOMAIN.NAME.COM.AU failed (Client not 
> found in Kerberos database)
>
> Not sure if this is useful but I have run:
>
> # samba_dnsupdate --verbose --all-names --no-credentials
>
> Calling nsupdate for A server1.domain.name.com.au 0.0.0.0 (add) -> 
> Both lines don't show 0.0.0.0 it shows the real ip address
> Failed nsupdate: A server1.domain.name.com.au 0.0.0.0 : [Errno 2] No 
> such file or directory
>
> And it keeps trying to find those files all with the same error:
> [Errno 2] No such file or directory
>
> Calling nsupdate for A gc._msdcs.a
> Calling nsupdate for SRV _gc._tcp.
>
> Last thing that I found
> On DC1
> # ps ax | grep samba
> 38636  -  Is      0:00.40 /usr/local/sbin/samba --daemon 
> --configfile=/usr/local/etc/smb4.conf
> 38637  -  I       0:00.00 samba: task[s3fs_parent] (samba)
> 38638  -  S       0:27.24 samba: task[dcesrv] (samba)
> 38640  -  I       0:00.01 samba: task wrepl server_id[38640] (samba)
> 38641  -  I       0:08.63 samba: task[ldapsrv] (samba)
> 38642  -  S       0:00.07 samba: task[cldapd] (samba)
> 38644  -  S       1:04.27 samba: task[dreplsrv] (samba)
> 38645  -  I       0:00.00 samba: task[winbindd_parent] (samba)
> 38646  -  I       0:00.01 samba: task[ntp_signd] (samba)
> 38648  -  I       0:03.79 samba: task[kccsrv] (samba)
> 38649  -  S       0:00.89 samba: task[dnsupdate] (samba)
> 38650  -  I       0:04.54 samba: task[dns] (samba)
>
> on DC2
> # ps ax | grep samba
> 11108  -  Ss       0:00.41 /usr/local/sbin/samba --daemon 
> --configfile=/usr/local/etc/smb4.conf
> 11109  -  I        0:00.00 samba: task[s3fs_parent] (samba)
> 11110  -  S        0:02.74 samba: task[dcesrv] (samba)
> 11112  -  S        0:00.00 samba: task wrepl server_id[11112] (samba)
> 11113  -  I        0:01.77 samba: task[ldapsrv] (samba)
> 11114  -  S        0:00.19 samba: task[cldapd] (samba)
> 11115  -  I        0:00.44 samba: task[kdc] (samba)
> 11116  -  S        0:01.07 samba: task[dreplsrv] (samba)
> 11117  -  I        0:00.00 samba: task[winbindd_parent] (samba)
> 11118  -  S        0:00.00 samba: task[ntp_signd] (samba)
> 11120  -  I        0:00.43 samba: task[kccsrv] (samba)
> 11121  -  S        0:00.04 samba: task[dnsupdate] (samba)
> 11122  -  S        0:00.01 samba: task[dns] (samba)
>
> As you can see task[kdc] (samba) is not running on DC1, I'm pretty 
> sure this is something to do with my issues, but not sure how to fix 
> this, I appreciate your help and thanks in advance for reading this.
>
>
> Regards,
>