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How do I remove a "dead" Domain Controller in AD?

    Question

  • I took over the support job of a small network which previously had two Windows 2003 Domain Controllers. One of the DCs was pulled out of the network physically but was not demoted before that.

    It still shows up as a DC on the network and gives tons of error messages on the event viewer.

    How do I take it out?
    Friday, February 19, 2010 3:06 PM

Answers

  • Good day V3Bok,

         To remove dead or orphaned D.C. you can go to Active Directory Users and Computers, then go to Domain Controllers OU, then you will see the list of Domain Controllers you can directly delete it with the following options which tells you what is the right action you will do, and don't forget to go to Active Directory Sites and Services to fully delete also the DC which is no longer use and no longer active to eliminate the error messages like NTDS.

         If you have also a Windows Based DNS Server delete also these entries at Forward Lookup Zones:

         1.)  (same as parent folders)   (Host A)   <IP Address of the dead Domain Controller>
         2.)  <DC Server Name>   (Host A)   <IP Address of the dead Domain Controller>

         At Reverse Lookup Zones:

         1.)  <IP Address of the dead Domain Controller>   Pointer (PTR)   <mydomain.com>
        
         Hope this will help with your problem.

         Thanks and Regards,

         Cheers...
    Friday, February 19, 2010 3:29 PM
  • Hello

    I have some detailed steps on accomplishing this onmy blog
    http://www.isaacoben.com/2009/06/26/remove-a-demoted-or-failed-dc-from-active-directory-using-ntdsutil-exe/
    Isaac Oben MCITP:EA, MCSE
    Friday, February 19, 2010 4:41 PM
  • Please see the links belwo in addition to  Issac's suggestion

    http://support.microsoft.com/?kbid=216498

    http://www.petri.co.il/fix_unsuccessful_demotion.htm


    http://technetfaqs.wordpress.com
    Friday, February 19, 2010 4:49 PM
  • Hello,

    see this article about the needed steps:
    http://support.microsoft.com/kb/555846/en-us

    Alos you have to check DNS zones and Name server tab afterwards to see if the server is listed.
    Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
    Sunday, February 21, 2010 2:04 PM

All replies

  • Good day V3Bok,

         To remove dead or orphaned D.C. you can go to Active Directory Users and Computers, then go to Domain Controllers OU, then you will see the list of Domain Controllers you can directly delete it with the following options which tells you what is the right action you will do, and don't forget to go to Active Directory Sites and Services to fully delete also the DC which is no longer use and no longer active to eliminate the error messages like NTDS.

         If you have also a Windows Based DNS Server delete also these entries at Forward Lookup Zones:

         1.)  (same as parent folders)   (Host A)   <IP Address of the dead Domain Controller>
         2.)  <DC Server Name>   (Host A)   <IP Address of the dead Domain Controller>

         At Reverse Lookup Zones:

         1.)  <IP Address of the dead Domain Controller>   Pointer (PTR)   <mydomain.com>
        
         Hope this will help with your problem.

         Thanks and Regards,

         Cheers...
    Friday, February 19, 2010 3:29 PM
  • Hello

    I have some detailed steps on accomplishing this onmy blog
    http://www.isaacoben.com/2009/06/26/remove-a-demoted-or-failed-dc-from-active-directory-using-ntdsutil-exe/
    Isaac Oben MCITP:EA, MCSE
    Friday, February 19, 2010 4:41 PM
  • Please see the links belwo in addition to  Issac's suggestion

    http://support.microsoft.com/?kbid=216498

    http://www.petri.co.il/fix_unsuccessful_demotion.htm


    http://technetfaqs.wordpress.com
    Friday, February 19, 2010 4:49 PM
  • Hello,

    see this article about the needed steps:
    http://support.microsoft.com/kb/555846/en-us

    Alos you have to check DNS zones and Name server tab afterwards to see if the server is listed.
    Best regards Meinolf Weber Disclaimer: This posting is provided "AS IS" with no warranties, and confers no rights.
    Sunday, February 21, 2010 2:04 PM
  • Hi Isaac, can you update the pics?

    Erick

    Tuesday, April 08, 2014 3:44 PM