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Wednesday, September 8, 2021

How to Rename A Domain Controller

Description:

During Active Directory Upgrade, you might need to maintain the old Domain Controller name because of certain application requirement. You planned to use the swing method, where the new Domain Controller will be renamed to old Domain Controller name.

Resolution:

  1. Make sure the old DC name is not being use anymore in the entire domain. Check Active Directory Object, check DNS Record, Check DFSR Object, etc.
  2. Use Netdom command to rename the Domain Controller according to the following steps:
    • On the new Domain Controller, open Command Prompt with Administrative Privileges
    • Type netdom computername “current_name” /add:”fqdn_newname” > press enter
    • Type netdom computername “current_name” /make primary:”fqdn_newname” > press enter
    • Restart Domain Controller
    • Type netdom computername “current_name” /remove:”fqdn_oldname” > press enter

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