[Samba] A record

[Marcos Ariel Negrini]

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