I've been asked if we can do a Split Horizon DNS structure in our office. From what I've looked up so far its not looking promising but I have yet to find anything that looks like our set up here.
What we have is a windows server based domain (2000 functional level tho no 2000 servers!) with AD integrated DNS.
The local domain is domain.local giving an fqdn of hostname.domain.local
We have a number of external services (mail, web, database etc.) accessed using a legal qualified domain, e.g. red-king.com, NATed on public IPs
What I've been asked to look into is if we can have some external services accessed through the local lan, but using the external domain, red-king.com
So the problem I'm hoping split horizon can solve (if I can configure it on windows) is that I can add a red-king.com zone to my server and resolve mail.red-king.com to a local address but resolve www.red-king.com
to a public address.
What I'm worried about is that if we put a red-king.com zone on our local dns servers then requests for a record not in our local dns will not get forwarded.
Alternatively I'm thinking to create the red-king.com zone and replicate all the public DNS entries into our local server. I've no idea of the scope of this though.
Any and all help appreciated,