DNS question, multiple records
 

Right now if my main server goes offline, all the other servers using subdomain are unable to resolve. What do I need to do to have it rely on itself?

You need to set up some secondary dns servers. There is a wealth of information on the web on how to set it up (transferring the zones from the primary dns servers to the secondary ones). Let us know if you have trouble setting this up.

Well, if your non-dns servers rely on this main server for dns queries, and the dns server goes down you're screwed as it can't resolve any domain/subdomains. You want it to rely on itself? That means it would have to be a dns server itself or you can start hard coding the ip addresses/hostnames in the hosts file.

-twantrd

Okay, looking into setting up secondary DNS servers now. Thanks.