Well, I’m not entire certain I understand what you’re asking there…
But I’ll toss out some things that can assist in getting DNS setup.
First, there’s some documentation on setting up nameservers here in the section named “How do I setup nameservers for my server”:
http://www.virtualmin.com/documentation/dns/faq
Also, if you wanted a slave DNS server on a separate server, you could use this (though this is a more complex setup):
http://www.virtualmin.com/documentation/dns/slave-configuration
Do either of those by chance answer your question?
-Eric