We recently took over IT support roles for a local bank. The bank has 6 branches and roughly 120 PCs. Originally, when the networks were setup, there was no inter-branch communication. BranchA could not talk to BranchB, etc. As such, there was separate domains setup at each location. From a management standpoint, this is a nightmare. Everything that has to be done, has to be done 6 times. Group policy changes, security changes, WSUS installations, MBSA Scans, etc.
Now they have a VPN between all locations. I am trying to figure out the best way to switch their domains around. The main branch we'll call BranchA has the most PCs and Uppermanagement personnel. The other branches have basic bank operations, tellers, csrs, etc. 4 of the branch servers are running Windows Server 2003, 2 are running Windows 2000 Server.
At first I was thinking of connecting all PCs to the BRANCHA domain, switching all servers to be domain controllers and setting up sites and OU's in active directory. Then I was thinking about child domains.
Any help would be appreciated.