Is it required to use a subdomain as the server's hostname? This causes a DNS zone for the subdomain which isn't proper. For instance, I can't seem to resolve my server's hostname. Can we use a domain rather than a subdomain? The main domain should have a DNS zone and specify subdomains in it, not a zone for a subdomain. I'm using BIND and clustering. All my records are synced. In the zone (server.mydomain.com) there's an A record pointed to the IP but it still won't resolve. I assume this is because subdomains are supposed to be in the zone of a main domain.