samba - Oct 2021 - A record

Hello:
I have a productive samba4 AD 4.13.7 cluster. On it, I am using the 
internal samba dns, and I'm testing on a lab to switch to bind9. I have 
several doubts, but the first one is that I can't determine the exact 
time where the A record of a workstation is generated after joining it 
to the domain. After several tests with windows I came to the conclusion 
that the A record is generated after the first login of a user (not at 
the time of joining the workstation), but in some situations the record 
is not generated according to this logic. In linux I can not determine 
what triggers the generation of the log. Could you guide me about this? 
what triggers the generation of the A records of the workstation in samba?
greetings
Marcos

On Wed, 2021-10-13 at 11:35 -0300, Marcos Ariel Negrini via samba
wrote:
> Hello:
> I have a productive samba4 AD 4.13.7 cluster. On it, I am using the 
> internal samba dns, and I'm testing on a lab to switch to bind9. I
> have 
> several doubts, but the first one is that I can't determine the
> exact 
> time where the A record of a workstation is generated after joining
> it 
> to the domain. After several tests with windows I came to the
> conclusion 
> that the A record is generated after the first login of a user (not
> at 
> the time of joining the workstation), but in some situations the
> record 
> is not generated according to this logic. In linux I can not
> determine 
> what triggers the generation of the log. Could you guide me about
> this? 
> what triggers the generation of the A records of the workstation in
> samba?
> greetings
> Marcos
> 
If everything is set up correctly, then the computers A record should
be added when 'net ads join -Uadministrator' is run and the join is
successful. There is nothing in Linux that will create AD dns records,
Bind9 certainly has nothing.

Rowland