I'm new to this whole SSH thing.  SSH is basically a secure way to logon to your website.  It's more secure than things like FTP or TELNET because it uses lots of encryption and authentication.  It's very un-graphical, meaning that it's text-based like the command prompt in windows. 

I needed to use SSH for something on my website, so I looked for ways to do it.  The most useful thing I found was MindTerm, which is a web-based SSH client.  Instead of downloading some stupid text entry SSH client, I wanted to keep my website web-based (following my pattern of web-based FTP, RSS, and email).  This single java file makes it possible.  It's pretty simple:  Put the file in a directory on your webserver and call it in an applet.  Now you can do all those fancy (archaic) command line things like gzip, ls, and chmod.  (I'm sure this has something to do with Linux.)