Morning,
Came in on Monday morning to find one of my domain controllers dead and died Friday night, which I thourght it would be fine as I have 2 domain controllers in this domain.
DC1 = dead
DC2 = OK
So I logged in to DC2 and Seized control of the 5 roles..schema, infrastructure etc.
ran ntdsutil metadata cleanup commands.
And all seamed to be going well, but now the two child domains no longer trust the parent domain.
In AD Sites and Services I cannot replicate between the domains....
I get.."The System detected a possible attempt to compromise security.Please ensure that you can contact the server that authenticated you" or I Get.."The RPC server is unavailable. The Condition may be caused by a DNS lookup problem"
In AD Domains and Trusts the parent trusts the the children "outgoing" but not the other way.
on the child DC's trusts the other Child DC but not the parent. if I run the Validate in ADDT I get "Windows Cannot find an AD Domain Controller for the parent.local domain. Verify that an AD DC is available and then try again"
The network is still working, I can ping each of the servers from each other.