A modern GNU/Linux firewall for GNOME
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README.md Update README.md Apr 27, 2014

README.md

Je suis un developpeyr Breton!

Douane endorse

Douane is a firewall that filter and limit the outgoing network traffic per application.

You can allow network traffic for some applications and deny network traffic for others.

How it is working

When Douane is started, it will watch the ougoing network traffic and as soon as an unknown application tries to send some network packets, Douane will block it and ask you if you allow it or not:

Douane - Question window

The application is composed of multiple parts written in different programming languages.

Linux kernel module

The Linux Kernel Module is the heart of Douane as it will catch outgoing network packets and find owning application.

Written in C, it use Netfilter to watch the network traffic.

Daemon process

This is the brain of Douane as it will ask you and remind your decisions to allow/deny network traffic.

Written in C++, it provide a D-Bus server in order to communicate with the other parts.

Dialog processes

The dialog process is the window which is appearing when an unknown activity has been detected. It is written in GTK 3 for the official project.

Configurator

Finally the configurator allow you to edit the configuration (rules, load on boot, ...).

Douane - Configurator

The configuration is written in python 3 and GTK 3 using PyGObject, is open source and is an interface to the D-Bus server provided by the daemon process.

The twitter area on the right is my GtkTwitterBox.

Feature requests and Bug reporting

If you found a bug or have an idea to improve Douane your input is more than welcome!

Fill in a new Github issue in this project and I will have a look at it.

For the first release the application I didn't implemented so much features in order to keep it simple as possible in order to focus more on the stability of the application.

Now that the application is quite stable (let's see for bug report) I can implement new features so do not hesitate to ask!!

Licencing

The entire project is 100% open source under the GPL v2 licence.

Install

You can find the compilation/installation instruction in the wiki.