DNS records, how to set up?

Question

Domain Name System

what we have:
AD+DNS domain name network.com ip 192.168.0.86
separate machine Kerio connect 192.168.0.50 external
ip
37.xxx.64.xx 10) mail.fb-colorit.kz." "mail.fb-colorit.kz. A 37.xxx.64.xx" the domain name on the hosting is one, and the network domain name is another. When configured in its dns record "A" it shows mail.network.com . how to change domain? Can you please explain step by step how this is done. I read manuals, forums, but it doesn't work.

Answer 1

so you create a new domain (fb-colorit.kz).
Why are you writing to another domain?? (network.com)

Answer 2

create a forward lookup zone for your domain in the dns server and configure everything there