[Samba] pam_winbind didn't work after DC restarted, had to restart winbindd

[Markus Fischer]

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Hi,

this night our DC was restarted (controlled), however my debian machine
with samba 3.0.22 stopped doing authentication on all services relying
on pam_winbind. I traced it back that winbindd, for some reason, didn't
worked properly anymore.

All I got in the log was a message from pam_winbindd:

Sep  1 07:23:17 entwicklung pam_winbind[15896]: request failed: Invalid
computer name, PAM error was 4, NT error was NT_STATUS_INVALID_COMPUTER_NAME
Sep  1 07:23:17 entwicklung pam_winbind[15896]: internal module error
(retval = 4, user = `markus')

I got this two entries every time I tried to authenticate.

After I stopped and restarted winbindd it worked without problems. Is
there anything which an be done to prevent winbindd from stop working
after the DC restarted?

thanks,
- - Markus
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