I have read through some DNS literature and have a basic understanding of DNS and linux servers (still very new though) and one thing that I really do not understand is how the hostname and domain name relate to the setup of my mail server. Here is my layout:
My server name is pm04.cgroge.com
I set the hostname to this value pm04.cgroge.com
cgroge.com is fictional. I think this is right?
One of the domains I wish to server mail for is openbizguide.com
When setting up Zimbra the install will break and say that it cannot resolve the hostname. This confuses me because by using a fictional domain to setup my server it naturally would have no way to resolve the name!
Should I be using a derivitive of a real domain name to name my server? Should I instead use something like pm04.openbizbuide.com? (since openbizguide.com is resolvable)