I have a question about how to go about Migrating our existing NT4 domain over to AD and Win 2003 server. Currently we have 5 servers, a PDC running NT4, a BDC running NT4, a dedicated exchange server running Win2000, and 2 dedicated application servers running Win2000. We have an internal domain name that is non-internet routable and we have no internal DNS server, we use our ISP for our external DNS.
So my question is this, What is best way to go about migrating our domain?
I purchased two servers to aid in the testing and design of the whole process. Should I mess around with installing NT4 on the new server as a BDC, and then upgrading it, or should I just create an entirely new domain and use ADMT to transfer over the user accounts. From what I have read, since I have access to these spare servers I should just create a new domain and use ADMT. THis all sounds wonderful in theory, but what problems will I run into. I have read about problems with file permissions after the migration, Exchange 5.5 problems, login problems after the migration, etc. I have all the time in the world to plan this and do it right so I want to get some ideas on how to go about it. Any ideas?