How to configure DNS on records like ns1.mydomain.com?

Question

Domain Name System

The registrar has a domain and a hoster has a VPS with an ISPmanager panel.
Free DNS is provided by both the domain registrar and the host, but I would like to have my own.
Can you please tell me how this can be done with root access and the ISPmanager control panel? That is, I need to display NS servers on my own domain when viewing whois:
ns1.mydomain.com
ns2.mydomain.com

Answer 1

You need to set up your DNS server on a VPS and for God's sake
https://www.digitalocean.com/community/tutorials/h...
Just one question, why?