Renaming a Domain Controller

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You can use netdom to rename any computer, including a domain controller:

However this will leave the attribute msDS-AdditionalDnsHostName with the old name. Check this in ADUC attribute editor (or ADSIEDIT.msc):

Remove the old name and restart.

PS. This fixes not being able to re-use the old name on another computer. You get the error The operation failed because SPN value provided for addition/modification is not unique forest-wide, and you will see the old domain name when you run setspn -l <oldname>. Performing the above attribute changes fixes this.


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