I need to decommission a 2012 R2 domain controller. We have 7 sites and this is the domain controller for site 1. Nothing is using the domain controller. All computers are using other DNS servers/DHCP servers at this time. My question is, do I need to do anything in AD Sites and services so that a different domain controller services this site? I can't seem to find anywhere to assign a different domain controller to the subnet in Sites and Services. Does this even need to be done or can I decommission the DC and be done? Thanks in advance.