Correct Way to Rename an Active Directory Domain Controller
If you rename your DC by renaming a Domain Controller in the normal way you would rename a computer (using the System > Rename this PC gui), you didn’t do it right and your metadata is likely irreversibly damaged. However, I have seen success in this situation when multiple DC’s exist by demoting a re-promoting the DC. If only a single DC exists I would say its maybe a good idea to follow the below guide as it may get your out of the proverbial but probably not recommended and you may have to rely on backups. Use the below method carefully to rename your DC in a right way and for a smooth migration Step 1: Getting ready. Open a command prompt. (Windows key+r (run) + cmd) Step 2: Adding an alternate computer name. SYNTAX : netdom computername <currentDC FQDN> / add:<newDCName FQDN> In the command prompt, type (minus quotes) “netdom computername wrongname.domain.local /add:server.domain.local“ This should return with “Added (NAME) as an alternate nam