Here’s a tip for you command line people. When you use telnet to access a service on another machine, have you ever wondered how to get out of your telnet session? Let’s say we used telnet to check an SMTP host:
# telnet someserver.somehost.com 25
Connected to someserver.somehost.com.
Escape character is ‘^]’.
We know from the clue above that we need to press ctrl and the right bracket to stop the session, but what happens then?
We see this: telnet>
So now what? Simply type the word “close” and hit the enter key.
Easy as pie!