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How to use the telnet command

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Summary

Telnet command will test if a port is open. It allows you to test connectivity to a remote host on a given port, which can help diagnose communication issues.

Resolution

To use telnet

  1. Find the ip address of the server or main computer. Use the ipconfig command at the server to return the ip address.
  2. Select the Windows + R. 
  3. Type CMD in the Run box.
  4. Select OK.
  5. Type Telnet (server IP address) 13531.
     EXAMPLE:  
    Type telnet 192.168.0.100 13531 to test if the server at IP address 192.168.0.100 is listening on port 13531. 
  6. Enable Telnet.
    • In the Windows Search, type Control Panel
    • Open the Control Panel, then Programs and Features
    • On the left side of the window, select Turn Windows Features on or off
    • Check the box for both Telnet Client and Telnet Server
    • Select OK
  7. If you see a blank cursor, then the connection is fine. You can close the command prompt window.
  8. Verify that you can now Telnet successfully.
  9. If you get an error or unable to telnet successfully, contact your Network Administrator for Troubleshooting network issues.