[Samba] How to Properly Configure Samba's Internal DNS

Rowland penny rpenny at samba.org
Mon Feb 1 15:45:16 UTC 2021

On 01/02/2021 15:37, Marco Shmerykowsky via samba wrote:
> On 2/1/2021 4:06 AM, Rowland penny via samba wrote:
>> On 01/02/2021 08:39, L.P.H. van Belle via samba wrote:
>>> As long i dont see the debug output of the script,
>>> I and Rowland (and others) are having a hard time to help out here.
>>> The debugscript i made does show us almost all we need.
>>> Now what you can do with it.
>>> Run in it on all you AD-DC's and find the differences.
>>> https://raw.githubusercontent.com/thctlo/samba4/master/samba-collect-debug-info.sh 
>>> if you post the output to the list, dont attach the files and 
>>> anonymize it where needed.
>> Might be an idea, even though the OP seems to have fixed his dns 
>> problem.
>> He then moved on to a problem with a Unix domain member, which turned 
>> out to be caused by a malformed 'idmap config' line.
>> He supplied a copy of the smb.conf he is using now and I just noticed 
>> another problem, though this could be a cut and paste typo:
>> workgroup = AD_DOMAIN
>> idmap config AD-DOMAIN
>> Rowland
> Correct. Typo in anonymizing it.
> On a related question, it is necessary to manually enter PTR records
> so that the hostname of a server (ie machine1) can be resolved to
> an IP address or does it typically happen automagically based on
> the hosts/hostname/resolv files?
> I don't remember adding any PTR records originally when I set thing
> up, but it was the only way I could get the 32bit server to resolve 
> properly.

By default, the PTR records are not added automatically, you can get 
Windows machines to do this, but no Linux machines can (well not without 


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