[Samba] DNS problem ubuntu server 20.04

[Rowland penny]

On 15/05/2020 08:17, L.P.H. van Belle via samba wrote:
>   
>
>> -----Oorspronkelijk bericht-----
>> Van: samba-technical
>> [mailto:samba-technical-bounces at lists.samba.org] Namens
>> Rowland penny via samba-technical
>> Verzonden: donderdag 14 mei 2020 21:20
>> Aan: samba-technical at lists.samba.org
>> Onderwerp: Re: DNS problem ubuntu server 20.04
>>
>> On 14/05/2020 18:57, RickJC1 via samba-technical wrote:
>>> Hello everyone I am trying to get Samba 4.11.6 -Ubuntu Bind
>>> 9.16.1-Ubuntu to work with Ubuntu server 20.04
>> It looks like 'samba-master/source4/setup/named.conf.dlz'
>> needs updating
>> again, the highest version is 'dlz_bind9_12.so'
>>>
>>> Hostname: dc1s
>>>
>>> NetBIOS Domain: GUNAS
>>>
>>> DNS Domain: gunas.int
>>>
>>>
>>> I am trying resolve a problem with not being able to find
>> the server.
>>> After many days of failed attempts. I did not want to bother anyone
>>> but I have been defeated so I could do with some help please.
>>>
>>>
>>> */etc/resolv.conf*
>>>
>>> nameserver 127.0.0.53
>> It should point at the DC's ipaddress
> Using the stub-adres for the dns works fine but you need to configure the othere things.
>
That is possible on a Unix domain member, but, in my opinion, you would 
have to remove systemd-resolve on a DC

Run <sudo netstat -plnt | grep '53'> on a newly installed Ubuntu 20.04 
and you get this:

tcp        0      0 127.0.0.53:53 0.0.0.0:*               LISTEN      
451/systemd-resolve

This would interfere with the AD dns server.

Rowland