I have some remote offices old domain controller box that I need to decommission.
Each office sites got their own aD domain controller with global catalog and has each dedicated AD site.
I'm going to build two AD domain controllers / global catalog in the data centre in its own AD site.
So is there any steps or consideration that I need to do before and after decommissioning the old domain controllers in each office sites ?
Do I have to delete or eliminate the AD site in each office location ?