How to set up a DNS server on opnsense?

Question

open server

I set up a server at work ....
Hypervisor -> virtual machine (opnsense 20.1):
LAN with computers in the ip 192.168.0/24 range
WAN with a server (Windows Server 2019) in the ip 10.0.0.1/24 range on which Open Server is installed with different sites.
At the moment, we write addressing in the host file for each machine and then everything works (for example: 10.0.0.1 dfs.loc).
But this is somewhat inconvenient. the number of users is growing....
I want to set up a DNS server on opnsense, I go to Services -> and there is:
Dnsmasq DNS;
Dynamic DNS;
open DNS;
Unboud DNS
Can anyone come across? What to set up? does anyone have a manual?

Now configured Unboud DNS.
I look with the command: nslookup testSite, it shows me the address 10.0.0.2, but the transition to the site does not occur .....