Hello, currently we have two DCs in two physical locations, one in UK and one in US. Both domains have the same name, say comp.com. User accounts are different in each domain.
We're changing the infrastructure to the cloud and the idea is to merge the two existing domains into a single domain. One DC is Win Server 2008 and the other is Win 2008 R2.
What would be the best way to achieve this so that users don't have to reset their passwords? I can create a private VPN between the two locations.
Once the new merged DC is created I would setup replication between US and UK so that a user created in either UK or US would exist in both locations. So if UK site goes down then uk users would be able to login into the US site and continue their work.