I am not as well versed in DC protocols and am having a rather interesting quandary.
I am working on a Server 2003 domain that has 2 DC's and I have added a new Server 2012 machine to the network with a core machine and 2 virtual machines. I made one of the virtual machines an additional DC.
When I look at the DNS manager on either of the 2003 machines I can see the 2012 server but while I can see the event viewer it says it cannot connect to the DNS server. I can connect to the server using ldp.
When I look at the DNS manager on the 2012 machine, I see the other two servers and two of the 2012 machine one with just its name and one with .(domain).local (see attached).
The machines replicate most of the time, ping back and forth, resolve OK in nslookup.
I want to make the 2012 machine the primary, but before I do I feel like I should delete one of the copies of the 2012 machine, but which one or does it matter? I also wonder if that conflict is causing problems with occasional 4015 errors.
Any insight would be greatly appreciated.