[Samba] Samba4 errors

Andreas Calvo flipy.bcn at gmail.com
Mon Jun 10 07:08:42 MDT 2013

We've been using samba v4 for a while, but recently we faced two problems
for which we cannot determine the source - nor the solution:
- every day samba4 stops authenticating new users and sharing folders.
While previous logged users can access resources and services, users that
weren't logged can't log in. It happens either from kerberos or directly
from LDAP.
- We are forwarding all DNS requests to the internal DNS server in samba.
When samba it's restarted, our main DNS server must be restarted too as it
cannot forward new queries to the samba server - howerver, both reply to
requests if queried individually.

We have tried to update from 4.0.5 to 4.0.6, and to downgrade it as it
wasn't working either.

Logs don't show anything that we can identify as an error/misconfiguration
- and samba main log file remains with extension %m, it does not get
expanded; while client's log file end with the IP/hostname of the machine.

What steps can we perform to identify the root of the problem?
Is there a particular string in the log files that can help?

PS: if necessary, we can upload a log file sample and the samba

Thanks in advance.

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