Merging one domain into another, pitfalls?
Posted on 2009-12-16
Our company currently has 2 domains. MainDomain.local has 5 branches connected to it, and about 100 computers and 80 or so users. Each branch also has a server that handles DHCP, DNS and acts as a file server for that branch. The main branch also has an Exchange server that everyone connects to. CampDomain.local has 8 users and about 10 computers. They used to be on ISDN, which is why they were put on their own network. Their server handles DNS, DHCP and file server duties. They connected to the main site via VPN for Exchange, where they also had an account (each user at CampDomain essential had 2 logins).
I've finally been able to put them on a T1, so I want to get rid of the CampDomain and get everyone on MainDomain. Is there a recommended way to do this? Here's my current plan:
Back up the file server stuff.
Use dcpromo and remove all the roles on the CampDomain server.
Change the domain to MainDomain.
Change all the permissions on the file shares to the accounts on MainDomain.
Set up DNS and DHCP.
Change the domain on the client computers to MainDomain.
See what that breaks and possibly set up each user fresh on their computer.
I'm guessing there is an easier way to migrate these together that I don't know about. I'm sure I'm missing some things that are going to go wrong as well. Thanks!