A. If the DC's domain level is set to "Windows Server 2003," you can use the Netdom tool to rename the DC. Microsoft supplies Netdom as part of the Windows Support Tools, which are available from the Windows 2003 installation CD-ROM. To rename the DC using Netdom, perform the following steps:

  1. Start a command-prompt session.
  2. Add the new name to the current server (it will now have two names) by typing
    netdom computername <current full computer name/IP                              address> /add:<new full name>
    For example, when I typed
    netdom computername gotham.savilltech.com /add:omega.savilltech.com
    my computer displayed the following message:
    Successfully added omega.savilltech.com as an alternate                              name for the computer.                              The command completed successfully.
  3. If multiple DNS servers are used, you must wait until the new name replicates to all authoritative DCs. After the new name has replicated, continue to the next step.
  4. Make the new name the primary name for the machine by typing
    netdom computername <current full                              computer name/IP address> /makeprimary:<new full name>
    For example, when I typed
    netdom computername                              gotham.savilltech.com /makeprimary:omega.savilltech.com
    my computer displayed the following message:
    Successfully made omega.savilltech.com the primary                              name for the computer. The computer must be rebooted for                              this name change to take effect. Until then this computer                              may not be able to authenticate users and other computers,                              and may not be authenticated by other computers in the                              forest. The specified new name was removed from the list                              of alternate computer names. The primary computer name will                              be set to the specified new name after the reboot.                              The command completed successfully. 
  5. Reboot the computer.
  6. After you reboot the machine, wait until all the domain locator records replicate to all authoritative DNS servers. After the replication is complete, check to ensure that the rename worked successfully by checking the name on the Computer Name tab of the Control Panel System applet. You can also view all computer names by typing
    netdom computername <new full name> /enumerate
    For example, when I typed
    netdom computername omega.savilltech.com /enum
    my computer displayed the following:
    All of the names for the computer are:                              omega.savilltech.com                              gotham.savilltech.com                              The command completed successfully. 
  7. You can now remove the old name by typing
    netdom computername <new full name> /remove:<old full                              name>
    For example, when I typed
    netdom computername                              omega.savilltech.com /remove:gotham.savilltech.com
    my computer displayed the following:
    Successfully removed gotham.savilltech.com as an alternate                              name for the computer.                              The command completed successfully.

You can enumerate the names again to show the old name has been removed.