At work or school, some ports are usually blocked and you cannot use a lot of applications such as BitTorrents, cannot access some websites, etc. Here's is how to get passed that using your home computer and SSH.

1. Install open ssh server on your home machine and leave it connected to internet.

In Ubuntu, open a terminal and:

sudo apt-get install openssh-server openssh-client

To start the server:

sudo /etc/init.d/ssh start

and to stop it:

sudo /etc/init.d/ssh stop