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Basically, anything you're able to do if you were standing right in front of the server, 
you'll be able to do via SSH. When you're finished with your session, simply type 
exit
 at the shell prompt, or press 
Ctrl
 + 
d
 on your keyboard.
As you can see, OpenSSH is a miraculous tool that will benefit you by allowing you to 
remotely manage your servers from anywhere you allow SSH access from. Make sure 
to read the relevant section in 
Chapter 11
, 
Setting Up Network Services
, with regards 
to securing it, though. In the next section, we'll discuss SSH key management, which 
benefits convenience, but also allows you to increase security as well.