How to install OpenSnitch firewall on Linux Ubuntu, Fedora, openSUSE and derivatives

How to install OpenSnitch firewall on Linux Ubuntu, Fedora, openSUSE and derivatives, If you want to have control over network entry and exit, see how to install the OpenSnitch firewall on Ubuntu Linux, Fedora, openSUSE and derivatives.

OpenSnitch is an application-level firewall for Linux. The app is inspired by Little Snitch, a host-based commercial application firewall for macOS. It’s made up of a daemon written in Go and a PyQt5 GUI.

Opensnitch monitors outgoing connections that your applications are trying to make, preventing or allowing their connection based on a set of rules (the user is prompted to allow or deny access when no existing rules are found).

The original developer of OpenSnitch mentioned in June 2019 that they are no longer working on this program, so the project has been forked (created a fork).

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How to Install OpenSnitch Firewall on Linux

To install the OpenSnitch firewall on Linux, use one of the procedures below.

How to install OpenSnitch firewall on Linux Ubuntu, Debian and derivatives

Anyone who wants to install the OpenSnitch firewall on Linux Ubuntu, Debian and other systems that support .deb files, should do the following:

Step 1. Open a terminal;
Step 2. Check if your system is 32-bit or 64-bit, for that, use the following command in the terminal:

uname -m

Step 3. If your system is a 32-bit ARM, use the command below to download the program. If the link is out of date, go to this page , download the latest version and save it as opensnitch.deb:

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/opensnitch_1.3.6-1_armhf.deb -O opensnitch.deb

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/python3-opensnitch-ui_1.3.6-1_all.deb -O opensnitchgui.deb

Step 4. If your system is a 64-bit ARM, use the command below to download the program. If the link is out of date, go to this page , download the latest version and save it as opensnitch.deb:AdvertisingAdvertising

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/opensnitch_1.3.6-1_arm64.deb -O opensnitch.deb

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/python3-opensnitch-ui_1.3.6-1_all.deb -O opensnitchgui.deb

Step 5. If your system is a 64-bit Intel/AMD, use the command below to download the program. If the link is out of date, go to this page , download the latest version and save it as opensnitch.deb:

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/opensnitch_1.3.6-1_amd64.deb -O opensnitch.deb

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/python3-opensnitch-ui_1.3.6-1_all.deb -O opensnitchgui.deb

Step 6. Now install the program with the commands below:

sudo dpkg -i opensnitch*.deb

sudo apt-get install -f

Step 7. If you prefer, use the command below to install the program;

sudo apt install ./opensnitch*.deb

Step 8. Then, if you need to uninstall the program, use this command:AdvertisingAdvertising

sudo apt-get remove opensnitch*

How to Install OpenSnitch Firewall on Linux Fedora, OpenSUse, CentOS and Derivatives

Anyone who wants to install the OpenSnitch firewall on Linux Fedora, OpenSUse, CentOS and other systems that support .rpm files must do the following:

Step 1. Open a terminal;
Step 2. Check if your system is 32-bit or 64-bit, for that, use the following command in the terminal:

uname -m

Step 3. If your system is a 64-bit ARM, use the command below to download the program. If the link is out of date, go to this page , download the latest version and save it as opensnitch.rpm:

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/opensnitch-1.3.6-1.x86_64.rpm -O opensnitch.rpm

wget https://github.com/evilsocket/opensnitch/releases/download/v1.3.6/opensnitch-ui-1.3.6-1.noarch.rpm -O opensnitchgui.rpm

Step 4. To install on openSUSE or one of its derivatives, use the command below:AdvertisingAdvertising

sudo zypper install opensnitch.rpm

Step 5. To install on Fedora, RedHat and their derivatives, use the command below:

sudo yum localinstall opensnitch*.rpm

or

sudo dnf install opensnitch*.rpm

Step 6. To install the program on most distros that support RPM files, use the command:

sudo rpm -i opensnitch*.rpm

Step 7. Then, if you need to uninstall the program, use this command:

sudo rpm -e opensnitch*

Ready! Now, when you want to start the program, type opensnitchin a terminal (followed by the TAB key), or by clicking its icon or system application menu.