what domain controller am i using?

 

To determine the domain controller that you are currently using, you can run the following command in Command Prompt or PowerShell:

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nslookup -a <computer name>

This will show the authoritative DNS server for the domain that your computer is joined to. The authoritative DNS server is typically a domain controller.

Alternatively, you can use the following command to check the logon server for the current user:

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echo %logonserver%

This will display the name of the domain controller that authenticated the current user session.