What is my domain controller?

Your domain controller is the server that authenticates users and computers in a Windows domain network. You can determine your domain controller using the command prompt.

Finding Your Domain Controller Using the Command Prompt

Here's how to find your domain controller using the command prompt in Windows:

1. Open the Command Prompt:

   • Press the Windows key, type "cmd", and press Enter.

2. Execute the set L command:

   • In the command prompt window, type set L and press Enter. This command displays all environment variables that start with the letter "L".

3. Identify the LOGONSERVER variable:

   • Look for the variable named LOGONSERVER. The value associated with this variable indicates your domain controller. For example:

     LOGONSERVER=\\YOURDOMAINDC01

     In this example, \\YOURDOMAINDC01 is the name of your domain controller. YOURDOMAINDC01 is the actual server name. The \ characters at the beginning indicate that it is a network resource (in this case, a domain controller).

Therefore, the part after LOGONSERVER=\\ gives you the name of your Domain Controller.