Last but not least, take a closer look at the TELNET command. This command allows you to remotely connect to a server running the Telnet service, and then interact with it as though you were sitting at the command line of that system.
This is a wonderful tool to interact with remote systems, such as those running Linux or Unix, as many Internet servers do. In order to log on to a server via Telnet you’ll need an account configured on that system, as well as some understanding of the remote system’s command line environment.