Telnet is a means of remotely controlling a device from the CLI, which in the case of Windows is the Command Prompt. Telnet works on port 23 and offers a text-based, low-bandwidth means of communicating with other devices. For telnet to work, you need to have a telnet server running on the device you want to send commands to and you must be running a telnet client yourself. Both of these are built into modern versions of Windows.

Now that I've told you about Telnet, I'm going to tell you to never use it, unless as a very last resort or as a means of setting up a more secure connection such as SSH. Telnet works out of the box, while SSH requires configuration. You may be wondering why I would say this. It's simple. Telnet sends all ...

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