How portable is a DNS server when it comes to LDAP, especially Kerberos which I am using for authentication? Meaning, how much do I have to change to use the same LDAP server with 2 different DNS servers as long as they use the same names & IP addresses, etc.? Specifically, I am using an LDAP server on Fedora & the DNS servers on Ubuntu, latest stable versions for each.
Just make sure the same dns records exist (A, SRV if needed) and you'll be fine. A better option is to have one dns a slave of the other so you don't have to worry about the replication