I have a site with 1 AD, 2 AD servers with DNS. The AD has 2 Sites, main LAN and DMZ.
LAN IP 192.168.1.x
DMZ IP 192.168.3.x
DMZ contains 2 servers MS01 and FS03
We had some "principal target" errors between servers and FRS did not work. During troubleshooting one of our guys accidentally deleted the forward lookup zone on the DNS server AD01, duh!
In restoring this the primary zone was then recreated and we reset the machine account PW with netdom, which fixed the FRS issue, but the deletion of the FLZ means that MS01 and FS03 do not longer resolve, access via IP is fine.
How do I start do diagnose what is missing?