I currently have active directory running with a primary and secondary active directory domain controller on 2 different servers. I'm also using microsoft DNS to host the internal IP addresses that AD uses to talk between servers. I also have SimpleDNS running to provide DNS for external IPs. SimpleDNS is running on 2 other servers.
I'm going to consolidate down from about 5 servers down to 1 server. Don't need the horsepower anymore.
I don't believe Microsoft DNS and SimpleDNS can coexist on the same server as I assume they use the same ports. What are my options? Should I remove Active Directory altogether, delete the microsoft DNS server and then install SimpleDNS for external DNS?