[Samba] Internal DNS not coming up in 4.18.0

[Anantha Raghava]

On 23/03/23 5:08 pm, Rowland Penny via samba wrote:
>
>
> On 23/03/2023 11:30, Anantha Raghava via samba wrote:
>
>> You are right. They are not starting. One of the server is throwing 
>> NTDS and rid related error and exit. By the way this one was having 
>> all FSMO roles before it was removed. I haven't tried the other one. 
>> I will try and & turn of faulty DCs and start the old (second server 
>> & check. If I can get some good back up from here, will this work?
>
> From the sound of it, you only have two options here:
> 1) you get a good DC from the ones you have turned off, back this up 
> and then start again.

I did this and I got the DC up & running with proper SOA records. I did 
seize all fsmo rolls to this running DC. I also did a dbcheck 
--cross-ncs --fix and this found 2 errors, basically reference to non 
existent, old FSMO roles holder and it fixed it. Then I attempted to 
join the new samba server (samba-version 4.18.0) and this is again 
saying, "Found writable DC ad.example.com" and connection is refused.

nslook up reports there is no server ad.example.com, dig reports there 
is no server ad.example.com, ping is unable to resolve the name. But 
samba-tool domain join and samba-tool drs showrepl are finding it. I 
just can't understand from where these two are finding it. There is only 
a host with name ad.example.com and samba version 4.18.0 is just 
installed on it.

Just can't figure out from where samba-tool domain join and drs showrepl 
are finding the reference.

> 2) you provision a new domain, this will entail re-joining everything 
> to the new domain.
>
> There may be a third option, you employ a Samba expert to try and fix 
> your domain, this is beyond a mailing list.
> See here:
>
> https://www.samba.org/samba/support/
>
> Rowland
>