Microsoft KB Archive/247913

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Replace a BDC with a New Computer Using the Same Name

Article ID: 247913

Article Last Modified on 11/1/2006


  • Microsoft Windows NT Server 4.0 Standard Edition

This article was previously published under Q247913


This article explains how to replace a backup domain controller (BDC) with a new computer and give the new computer the same computer name and Internet Protocol (IP) address as the BDC you are replacing.


  1. Change the name and IP address of the existing BDC computer:
    1. In Control Panel, double-click Network.
    2. On the Identification tab, click Change, type a new computer name, and then click OK.
    3. On the Protocols tab, double-click TCP/IP Protocol. On the IP Address tab, change the IP address to a different, valid IP address.
    4. Close the Network dialog box, and then restart the computer.
  2. Start Server Manager, and then delete the computer account of the old BDC from the primary domain controller (PDC).
  3. Install the new BDC, and give it the computer name that the old BDC used.
  4. During installation, use the IP address that the old BDC used, and create a computer account in the domain for the new BDC.
  5. To preserve share and file permissions, run the Permcopy.exe utility or the Scopy.exe utility to copy shares and files from the old BDC to the new BDC.

    NOTE: You can find the Permcopy.exe and Scopy.exe utilities in the Microsoft Windows NT Server Resource Kit Supplement 2 or later.

Keywords: kbinfo KB247913