Logging In to a Remote Linux or Unix System
Remote logins are a way of accessing the command line, processor, storage, and network resources of one computer, using another computer from somewhere else on a network.
They are one of the most powerful features of Unix-like operating systems, and one of the most important reasons for being able to use Linux at the console. After you master the command line, you will not only be able to use workstations or servers in the same room as you without need for graphics, but you will also be able to connect to and fully use nearly any machine worldwide that is running a Unix-like operating system, even on relatively slow dial-up connections, provided you have access to log in.
To illustrate, suppose you ...