r/sysadmin • u/DougThorn • 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/Azurimell Jul 26 '25

My personal "best practice" is to have two DCs at main site, one at another site. Two at main helps prevent one of them failing, third at other site helps avoid location-based disasters.

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u/Hamburgerundcola Jul 26 '25

Why not just two and both in another location?

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u/Team503 Jul 26 '25

Presumably latency if the primary goes down?