I've recently migrated a classical Windows Domain (samba3) to an Active Directory domain (samba4).
Workstations in remote sites do not have a local DC so they are not aware of the transition, hence they do not automatically migrate to the Active Directory setup and I have to join them manually.
Is there some way to automatically tell them (via DHCP?) to search for the new realm?
The environment was a migration so all of the previous information (accounts, SIDs, etc) is still valid.
I can restore connectivity to the remote clients by manually "rejoining" them from
ad.customername.com). Soon as I do that, they realize that they should be using DNS to find their AD environment and away we go!
This happens automatically at the main site due to the clients finding out about the new server due to NETBIOS broadcasts (right?) but workstations at remote sites don't have a local DC to provide that.