Hi everyone
I seen an interesting bug yesterday, it was about Windows Server 2019 and a error when you try to rename a new domain controller to the old name of a retiered’s one;
The error Windows was giving was:
The account already exists.
The culprit into that case was a left over that was visible in ADSI Edit. The exact location was;
Configuration -> CN=Sites -> CN=Default-First-Site-Name -> CN=Servers -> CN={Old Domain Controller}.
As simple as that, but it need a bit of playing in ADSI Edit 🙂