[Samba] Samba 4 + Zimbra 8

[Denis Cardon]

Hi Martin,

> I have a setup - Samba 4 for AD functionality and Zimbra 8 for e-mail and collaboration.
> Configured in Zimbra that for authentication Samba 4 has to be used. Basically it works, but now randomly one time in two or three days authentication just stops working. Nobody is able to log in to Zimbra e-mail.
> Had to restart samba and everything goes as nothing ever happened! :(

are you using the zimbra SSO kerberos auth (no login/password to type 
in) or the ldap bind authentication?

As far as ldap auth is concerned, I have a few sites with similar 
configuration and no issues (at least up to now :-). Here at the office 
we are using zimbra 8 (8.0.2.GA.5569.UBUNTU10.64) on ubuntu 10.04.3, and 
samba 4.0.5 compiled from source on debian wheezy.

What version of samba are you using? I had some issues ealier with beta2 
when one would change password.

Cheers,

Denis


> Last entry in log.samba is:
> [2013/05/14 11:11:06,  0] ../auth/ntlmssp/ntlmssp_sign.c:236(ntlmssp_check_packet)
>    NTLMSSP NTLM2 packet check failed due to invalid signature!
> But it was written in log ~1,5 hours before it happened!
> Before service restart 'ps -ef | grep samba' showed:
> root      4486     1  0 08:27 ?        00:00:00 /usr/local/samba/sbin/samba -D
> root      4487  4486  0 08:27 ?        00:00:00 /usr/local/samba/sbin/samba -D
> root      4488  4486  0 08:27 ?        00:00:09 /usr/local/samba/sbin/samba -D
> root      4489  4486  0 08:27 ?        00:00:00 /usr/local/samba/sbin/samba -D
> root      4490  4486  0 08:27 ?        00:00:00 /usr/local/samba/sbin/samba -D
> root      4491  4487  0 08:27 ?        00:00:01 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> root      4492  4486  0 08:27 ?        00:00:38 /usr/local/samba/sbin/samba -D
> root      4493  4486  0 08:27 ?        00:00:02 /usr/local/samba/sbin/samba -D
> root      4494  4486  0 08:27 ?        00:00:03 /usr/local/samba/sbin/samba -D
> root      4495  4486  0 08:27 ?        00:00:05 /usr/local/samba/sbin/samba -D
> root      4496  4486  0 08:27 ?        00:00:01 /usr/local/samba/sbin/samba -D
> root      4497  4486  0 08:27 ?        00:00:00 /usr/local/samba/sbin/samba -D
> root      4498  4486  0 08:27 ?        00:00:02 /usr/local/samba/sbin/samba -D
> root      4499  4486  0 08:27 ?        00:00:00 /usr/local/samba/sbin/samba -D
> root      4502  4491  0 08:27 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> root      4516  4491  0 08:29 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> root      5004  4491  0 10:08 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> root      5438  4491  0 11:36 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> root      5746  4491  0 12:38 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> 3000071   6291  4491  0 13:32 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
> 3000067   6297  4491  0 13:32 ?        00:00:00 /usr/local/samba/sbin/smbd -D --option=server role check:inhibit=yes --foreground
>
>
> Does anybody have idea where to dig?! Is there any other logs or verbose/debug mode how to find out what causes this unexpected stop?!
>
> regards,
> Martins 		 	   		
>


-- 
Denis Cardon
Tranquil IT Systems
Les Espaces Jules Verne, bâtiment A
12 avenue Jules Verne
44230 Saint Sébastien sur Loire
tel : +33 (0) 2.40.97.57.55
http://www.tranquil-it-systems.fr