[Samba] Internal DNS entries not created on Domain join of Windows computer, but with Linux it works!?

Jakob Curdes jc at info-systems.de
Thu Mar 3 07:25:07 UTC 2022

Hello all, hello Patrick,

I never had problems with that mechanism in other installations. Might 
it be worth wile to try a provisioning with external DNS / BIND instead?
This is a larger production setup so I am reluctant to start with an 
error condition that is not unserstood well. We are using samba 4.15, 
might the previous version change something?

Thanks and best regards, Jakob

Am 02.03.2022 um 18:28 schrieb Patrick Goetz via samba:
> The automatically adding things to DNS thing seems to be very brittle. 
> I still haven't figured out why it works for Ubuntu 20.04 systems, but 
> not Arch linux.
> Just create the DNS entry by hand using samba-tool:
>   # samba-tool dns add samba-dc SAMDOM.LOCAL.COM Win-PC A 
> xxx.xxx.xxx.XXX -U administrator
> also don't forget to create the PTR record:
>   # samba-tool dns add samba-dc xxx.xxx.xxx.in-addr.arpa XXX PTR 
> Win-PC.SAMDOM.LOCAL.COM -U Administrator
> On 3/2/22 09:41, Jakob Curdes via samba wrote:
>> Hi all,
>> we are trying to setup a samba4 domain. It is not our first 
>> production setup, so I am really wondering what I am doing wrong here.
>> We use Ubuntu 20 and the Van Belle repository (which probably is not 
>> important here). We provisioned the domain with the internal DNS 
>> backend.
>> We can provision the domain, do all tests, we can join a linux system 
>> to that domain and it will get listed in the DNS zone automatically.
>> However when we join a Windows system, the join works, the computer 
>> shows up in the domain with its machine account as expected, but the 
>> DNS entry is not created.
>> We made sure the only DNS server entered in the Windows system is the 
>> domain controller. We see no suspicious messages on the DC or the 
>> system that joined.
>> If we later do a ipconfig /registerdns, the Windows computer shows up 
>> in the AD DNS zone immediately.
>> What could be wrong here? We are already on the third round of 
>> re-doing everything from the beginning, so I would be very glad if 
>> anybody has an idea where to start troubleshooting.
>> Thank you for helping,
>> Jakob
Jakob Curdes


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