Ensure that the domain functional level is at least Windows Server 2003, then run these commands:
Right-click CMD.exe >> run-as Adminstrator:
netdom computername DC01.KIMCONNECT.COM /add:DCo1.KIMCONNECT.COM
netdom computername DC01.KIMCONNECT.COM /makeprimary:DC01.KIMCONNECT.COM
shutdown -r -t 0
 
Optional:
Right-click CMD.exe >> run-as Adminstrator:
netdom computername {NewComputerName} /remove:{OldComputerName}
hostname
 
keywords: change, dc, name, second, secondary, server, host, alias, DNS, CNAME, record, records
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