[ubuntu-uk] Falling off Active directory

[Chris Rowson]

On May 24, 2011 3:48 PM, "Toby Satchell" <tsatchell at gmail.com> wrote:
>
> Hi,
>
> The server all sync to an NTP time server which syncs the DCs as well.
>
> The problem was the restarting winbindd doesn't actually work in fixing
the issue.
>
> Thanks,
>
> Toby.
>
>
> On 23 May 2011 10:06, Bob Clough <parag0n at ivixor.net> wrote:
>>
>> As a quick hack, you could make a cronjob check wbinfo, if you get a
message that it has fallen off the domain, kill and restart winbindd.
>>
>>
>> On 20 May 2011 10:14, Toby Satchell <tsatchell at gmail.com> wrote:
>>>
>>> Hi Grant,
>>>
>>> I can't see anything logs which would relate to the issue.
>>>
>>> You can test using wbinfo -u or wbinfo -g to show the users or groups,
which means it is all working fine however that just returns "Error looking
up domain users/groups"
>>>
>>> Thanks,
>>>
>>> Toby.
>>>
>>>
>>>
>>>
>>> On 20 May 2011 10:01, Grant Sewell <dcglug at thymox.co.uk> wrote:
>>>>
>>>> On Fri, 20 May 2011 09:56:36 +0100
>>>> Toby Satchell wrote:
>>>>
>>>> > Hi,
>>>> >
>>>> > We have a number of Ubuntu servers 10.04.
>>>> >
>>>> > They join to active directory run by Windows Server 2008 R2 very
well.
>>>> >
>>>> > However it seems they appear to fall off or loose a connection with
>>>> > the AD servers. It took 9 days last time.
>>>> >
>>>> > There isn't anything useful in the logs to explain why.
>>>> >
>>>> > The only way previously was to reboot the machine, which is not
>>>> > really an option at times.
>>>> >
>>>> > We have just found that killing winbind and starting it again fixes
>>>> > the issue without have to reboot the server.
>>>> > Restarting winbind does not fix it it doesn't even appear to restart
>>>> > in the process list, seems more like a reload.
>>>> >
>>>> > We have tried many other solutions and none have they worked.
>>>> > Aside from making a really dodgy cron script to kill and start
>>>> > winbind every 7/8 days does anybody know of a fix/solution?
>>>> >
>>>> > Has anybody else had this problem?
>>>> >
>>>> > Kind regards,
>>>> >
>>>> > Toby.
>>>>
>>>> All joking apart, have you tried looking at the Windows Server 2008 R2
>>>> event logs to see if that end gives you any hints?
>>>>
>>>> Grant.
>>>>
>>>> --
>>>> ubuntu-uk at lists.ubuntu.com
>>>> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
>>>> https://wiki.ubuntu.com/UKTeam/
>>>
>>>
>>>
>>>
>>> --
>>>
------------------------------------------------------------------------------
>>> Toby Satchell BSc (hons)
>>>
>>> --
>>> ubuntu-uk at lists.ubuntu.com
>>> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
>>> https://wiki.ubuntu.com/UKTeam/
>>>
>>
>>
>> --
>> ubuntu-uk at lists.ubuntu.com
>> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
>> https://wiki.ubuntu.com/UKTeam/
>>
>
>
>
> --
>
------------------------------------------------------------------------------
> Toby Satchell BSc (hons)
>
> --
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
> https://wiki.ubuntu.com/UKTeam/
>

Any reason you're not just getting your time directly from the DCs? Also,
you never mentioned whether or not these servers were virtualised?

Chris
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