Hello Sigurd Holter

Am 2014-11-10 um 16:14 schrieb Sigurd Holter:
> 
>> Nov 09 11:30:01 sogod [41436]:|SOGo| starting method 'POST' on uri
> '/SOGo/connect' Nov 09 11:30:01 sogod [41436]:
> <0x0x7f6a9cfe20b0[LDAPSource]> <NSException: 0x7f6a9f17b5e0>
> NAME:LDAPException REASON:operation bind failed: Can't contact LDAP
> server >(0xFFFFFFFF) INFO:{login = "cn=xxx,cn=xxx,dc=xxx,dc=xxx"; }
>> Is the above entry just a typo?
>> Normally this should be something like cn=xxxx,ou=yyy,dc=zzz,dc=tld.
>>
> 
> This is just an example of what is logged with information excluded
> (changed to 'xxx') as I do not want to advertise our information for the
> whole world.
> As mentioned, this does not seem to be a SOGo configuration error as the
> setup works fine for several days before suddenly stopping.
> So the information in the logs is correct, and the information in the
> logs is the same as is entered in sogo.conf - and therefore the same
> that is used for the whole time SOGo works correctly.
> 
> 

OK, so it is not the SOGo config.
(BTW: I didn't mean the 'xxx' parts, but the double cn= parts in the
above ldap name.)

>>> Is the LDAP connection from SOGo persistent, or is a new connection made
>>> for each request ?
>>>
>> They are opend when needed.
>>
>> Is a logrotate or backup running at these times?
>> Perhaps it closes down the ldap server for that only for some seconds?
>>
> 
> The LDAP server is as mentioned a Windows AD server which is never
> closed down.
> Other services authenticate towards the same server (i.e. postfix,
> dovecot etc.) and they have not complained about missing connection.
> 
> Backup/logrotate is not running at the time the connection is lost.
> If, as you say, SOGo makes a new connetion for each request - this
> shouldn't matter as SOGo should pick up a new connection if one is lost.
> But - if SOGo makes a persistent connection it would be understandable
> that the connection at some time might be lost.
> I imagine that SOGo then should find out and reconnect by itslf.
> 
> This is not a problem that appears and then disappears.
> If SOGo starts complaining about not being able to contact the LDAP
> server at 02:00, it still complains about this at 08:00.
> But all other services connection to the Windows AD/LDAP-server work
> fine from 02:00 to 08:00.
> It is therefore a purely SOGo problem as far as I can see.
> 
> But I cannot understand why SOGo works fine for a couple of days, and
> then suddenly says it can't find the server.
> As mentioned before, a "service sogo restart" makes everything work again.
> I do not have to restart the LDAP/Windows AD at any time, the problem is
> not with the LDAP/Windows AD server.
> 

Strange.
The only thing causing this I can think of is, that your SOGo server
gets a new IP via DHCP and SOGo is still using the old IP-Address, which
doesn't work anymore, till it is restarted.
But then you shouldn't be able to contact SOGo via webinterface too.


Kind regards,
Christian Mack

-- 
Christian Mack
Universität Konstanz
Kommunikations-, Informations-, Medienzentrum (KIM)
Abteilung Basisdienste
78457 Konstanz
+49 7531 88-4416

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