At this point, your Samba Domain Controller is up and running, but there’s a problem. As is, Samba is working without DNS because your server defaults to systemd-resolved.

Here is my setup.Ntserver1 - 192.9.202.253 - NT Domain Controller, Wins, DNSKermit - 192.9.200.102 - Backup Wins Server in another Domain on another network.Occasionally, from some workstations ...