OpenSnitch: The Little Snitch application like firewall tool for Linux

L ittle Snitch is a traditional software firewall for macOS. You can use it to monitor applications, preventing or permitting them to connect to attached networks through advanced rules. OpenSnitch is a GNU/Linux port of the Little Snitch application firewall written in Python.

The software is still in early stage of development, and alpha quality software, don’t rely on it (yet) for your computer security. However, this software can be very useful for Linux desktop users.


Install required software usingapt-get command:

$ sudo apt-get install build-essential python-dev python-setuptools libnetfilter-queue-dev python-qt4 python-gtk2

Sample outputs:

Fig.01: Installed required build tools

Clone the repo:

$ git clone

Install it:

$ cd opensnitch
 $ sudo python install

Run it:

$ sudo opensnitch

Sample outputs:

Fig.02: Running opensnitch

The Little Snitch application firewall will start working immediately and will show dialog as follows:

Fig.03: Opensnitch in action

You can allow, deny or whitelist apps. I hope the author will continue work on this app and releases a beta and stable version for the good of GNU/Linux users. For more info visit project home page here .

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