Telnet is an application protocol used on the Internet or local area network to provide a bidirectional interactive text-oriented communication facility using a virtual terminal connection.
When Telnet isn’t installed on your device, it prompts the error ‘telnet’ is not recognized as a command, internal or external. Telnet is disabled by default in Windows due to its lower security compared to SSH. Below are the links to have telnet installed on your device via the command-line or GUI
– Here are the steps to install Telnet via the command line, https://techdirectarchive.com/2020/05/16/how-to-install-telnet-via-the-command-line/
– How to install Telnet via the command line and GUI in Windows 10 and Windows Server, https://techdirectarchive.com/2020/04/07/error-telnet-is-not-recognized-as-an-internal-or-external-command-and-how-to-install-telnet-via-the-command-line-and-gui-in-windows-10-and-server-2019/