telnet nodeallows a connection to node, from any other machine connected to the Internet. node itself will prompt for a logon name, then the password. (Note that some terminals are not smart enough to know that echo should be turned off when the password is entered. As a result, the password will show on the screen.)
Logging on remotely allows users to use the same UNIX commands, but not the Graphics User Interface of the remote machine.
Logging out of the remote machine will close the connection between the host and the remote system.