[Samba] Samba4 replication not working

Ronny Forberger ronnyforberger at ronnyforberger.de
Thu Oct 13 14:58:10 UTC 2016



Am 13.10.2016 um 16:54 schrieb lingpanda101 at gmail.com:
> On 10/13/2016 10:37 AM, Ronny Forberger wrote:
>>
>> Am 13.10.2016 um 16:28 schrieb lingpanda101 at gmail.com:
>>> On 10/13/2016 10:19 AM, Ronny Forberger wrote:
>>>> Am 12.10.2016 um 20:17 schrieb lingpanda101--- via samba:
>>>>> On 10/12/2016 1:57 PM, Ronny Forberger via samba wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I get the following error when I am trying to check the replication
>>>>>> status of my samba4 dc:
>>>>>>
>>>>>> ERROR(<class 'samba.drs_utils.drsException'>): DRS connection to
>>>>>> nidy.
>>>>>> failed - drsException: DRS connection to nidy. failed: (-1073741772,
>>>>>> 'The object name is not found.')
>>>>>>      File "/usr/lib64/python2.7/site-packages/samba/netcmd/drs.py",
>>>>>> line
>>>>>> 39, in drsuapi_connect
>>>>>>        (ctx.drsuapi, ctx.drsuapi_handle,
>>>>>> ctx.bind_supported_extensions) =
>>>>>> drs_utils.drsuapi_connect(ctx.server, ctx.lp, ctx.creds)
>>>>>>      File
>>>>>> "/usr/lib64/python2.7/site-packages/samba/drs_utils.py", line
>>>>>> 54,
>>>>>> in drsuapi_connect
>>>>>>        raise drsException("DRS connection to %s failed: %s" %
>>>>>> (server, e))
>>>>>>
>>>>>> What can be the cause?
>>>>>>
>>>>>> Best regards,
>>>>>> Ronny Forberger
>>>>>>
>>>>> Is this a new DC?
>>>>>
>>>>> I would quickly check if you have a A and CNAME record for the DC.
>>>>> Follow this link
>>>>> https://wiki.samba.org/index.php/Verifying_and_Creating_a_DC_DNS_Record
>>>>>
>>>>>
>>>> It's a new DC. I really had the CNAME missing, so I added it, but I
>>>> still get the same above error.
>>>> Any ideas?
>>>>
>>>> Regards,
>>>> Ronny Forberger
>>>>
>>> After adding the record did you by chance restart the newly joined DC?
>>> Is the error the exact same error as before? Did you provision with
>>> the internal dns or bind?
>>>
>> I did restart the DC. The error is the exact same. I provisioned with
>> bind.
>>
>> Regards,
>> Ronny
>>
>
> Did you check replication status from both DC's? If so, do they both
> report the same error?
>
> Does DC1 point to itself for DNS or DC2(cat /etc/resolv.conf)? I would
> initially have DC1 point to itself for DNS to verify replication is
> working. Afterwards have each DC point to the other one first.
>
> Is bind running on both DC's(netstat -anp | grep ":53")?
Does bind have to run on the second DC as well? I only run bind on 3
other servers, resolving against them in each dc's resolv.conf.

Regards,
Ronny

-- 
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Ronny Forberger 
ronnyforberger at ronnyforberger.de
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