I'm not that familiar with DNS, I have a DNS server that handles all of our internal DNS entries and its fine. However we have a software package now that points to a host that exists "publicly" however we are supposed to use a different IP to access this server. I can put an entry in the local machine's host file and the software works but this is going on a lot of systems and I don't want outdated host files everywhere.
If I make a new zone on our DNS to handle this domain i can get the software to work by putting in a record, but then all of the other hosts on that domain break since I don't have records for them. (For instance, the www entry doesn't exist so going to the public website results in not finding a host).
So I'd like to put in one or two entries in our DNS for a zone I have no control/authority on and have it serve those internally but forward everything else out.