Do I need DNS for my local domain?

Question

Domain Name System

Hello, I work as a programmer, while the system administrator is on vacation.
There is a domain controller, server spheres (shared folders) and 2 hosts. The ball is accessed under domain users (Win server 2016) from hosts.
Question: do I need to specify DNS as a domain controller on the hosts and on the ball so that domain users can log in? Why do you need a local DNS at all? There is no corporate email or website.

Answer 1

local dns is just needed so that domain users can log in, and indeed for the normal operation of a domain local network. need to be specified.
in general, local dns - to resolve local network hostnames to ip addresses. in the case of AD, also to obtain the ip-addresses of the primary and secondary domain controllers, the domain name master server, the identifier master server, the scheme master server, etc.