I'm tinkering with 2003 Server and want to practice with AD, client logons, etc. I promoted the Server to a DC with a dummy domain name. Problem now is that I can't have clients join the domain because the domain name is not registered. I'm thinking that there are some settings in DNS that would allow me to not use internet resources and just work only within my practice bubble.
What I would like to have: A non-registered domain name that does not need internet activity so I can practice with 2003 Server. The DC with DNS should resolve only for the dummy domain and not forward any requests to my isp's DNS servers. The ability for clients (XP) to join the domain for practice.