You may recall that I advised you a while ago how to set up a firewall using Firestarter. Well, that's no longer necessary because Hardy introduces uFW, short for Uncomplicated Firewall. Despite the fact that uFW is a command-line only application, it really is as uncomplicated as the name sounds. To look at the documentation for uFW, enter the following:
Now, the default policy will be OK for most people, so all you need to know about is enable and disable. If you want to start up your firewall, enter the following:
sudo ufw enable
Now, when you restart your system, uFW will be working. If you want to disable it, just enter the following:
sudo ufw disable
Couldn't be simpler!