Hi, we are planning an AD domain migration and i had a questions around client DNS registration.
We have so many networks across the country that we have decided it would make our life much easier if we could host the new domain on the same network/subnets as the old domain. The old and new domains will be joined by a two way trust. Now obviously i can only have one DHCP server on any given subnet to hand out IPs, gateways and DNS addresses etc, so we are opted for the new AD server to be the one that handles DHCP for both old and new domain clients, and we will hand out the new AD servers IP as the DNS server). We will setup conditional forwarders to handle the DNS requests back and forth from old and new domains and vice versa so that should work fine....correct me if i am wrong.
My question is that if a client still on the old domain tries to register itself in DNS (DNS server IP is the new AD server) will the fact that i have a 2 way trust allow the old clients A record to be populated in the old domains dns?