SSH 101: Secure Shell Basics and X11 Forwarding
SSH, or the Secure SHell, is a powerful unix tool that allows you to securely connect to a remote computer, whether it be across a local network, or over the internet. You may have used it once or twice, but don't understand what all the fuss is about. Did you know that you can use it not only as a remote command line, but also to run graphical applications (for example, Firefox) remoteley? Or that you can also use it to access your Linux computer from a Windows machine? This article will discuss the uses of SSH, and explain how to setup an SSH server on your Ubuntu computer, enable X11 (graphical) forwarding, as well as how to access your Linux computer from anywhere in the world, from any computer.
Intalling and configuring the SSH server
Some distrobutions come with the SSH server, or sshd, installed by default. Ubuntu's desktop edition, however, is one of the few that doesn't, so we'll need to install it before we can connect to our computer over the network (or internet). This is incredibly easy - all we have to do is install the package "openssh-server", like this:
sudo apt-get install openssh-server
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