Downloading
Synaptic Package Manager
through the Ubuntu Software Centre.
"Synaptic is a graphical front-end to apt, the package management system in Ubuntu. It combines the point-and-click simplicity of the graphical user interface with the power of the apt-get command line tool.You can install, remove, configure, or upgrade software packages, browse, sort and search the list of available software packages, manage repositories, or upgrade the whole system.You can queue up a number of actions before you execute them. Synaptic will inform you about dependencies (additional packages required by the software package you have chosen) as well as conflicts with other packages that are already installed on your system."
Prelude to - Next Step:
Gufw is a firewall powered by UFW (Uncomplicated Firewall).
Installation
In order to install Gufw, you must have the Universe repository enabled. To install, use Synaptic, or run from Terminal:sudo apt-get install gufw
As I've been too lazy to fully grasp rules of running terminal commands, I'm downloading the graphics interface firewall thingy - here.
Or, that's the plan at this stage.
But maybe this step is a waste of time, because I can't see myself writing rules for the firewall. lol
