Telnet Port (Port 23): What It Is and How to Use Telnet to Test Ports

• 28 June 2026
• by: Ravi Subramanian
• in: Web hosting
• Tags: port 23, telnet, telnet port
• note: no comments

The Telnet port is 23/TCP, but Telnet is obsolete for remote login. Learn what Telnet is, why SSH replaced it, and how to use telnet host port to test connectivity.

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