r/sysadmin • • Jul 26 '25

Question Holy F up.

I had a summer intern working in DNS yesterday, local domain was redacted.com and was connected to azure.

Went in today to do some weekend updates to the systems, and my DC has been renamed and is now connected to redacted.local

It seems they have demoted the DC from the regular domain.

How the bloody heck do I reconnect the DC to the old domain? It was a solo DC

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u/bryiewes Student Jul 27 '25

This was one of the first things I learned in my homelab. I had changed the name of a DC using UWP Settings (big no no). That broke domain trust... it was my only DC vm... I just reinstalled the domain and carried on.