opensnitch Documentation

1. Project Overview & Quickstart (evilsocket/opensnitch) Copy Chapter

Key features Copy Chapter

• Interactive outbound connections filtering.
• Block ads, trackers or malware domains system wide.
• Ability to configure system firewall from the GUI (nftables).
  • Configure input policy, allow inbound services, etc.
• Manage multiple nodes from a centralized GUI.
• SIEM integration

Download Copy Chapter

Download deb/rpm packages for your system from https://github.com/evilsocket/opensnitch/releases

Installation Copy Chapter

deb

$ sudo apt install ./opensnitch*.deb ./python3-opensnitch-ui*.deb

rpm

$ sudo dnf install opensnitch*.rpm

Then run: $ opensnitch-ui or launch the GUI from the Applications menu.

Please, refer to the documentation for detailed information.

OpenSnitch in action Copy Chapter

Examples of OpenSnitch intercepting unexpected connections:

https://github.com/evilsocket/opensnitch/discussions/categories/show-and-tell

Have you seen a connection you didn't expect? submit it!

In the press Copy Chapter

• 2017 PenTest Magazine
• 11/2019 It's Foss
• 03/2020 Linux Format #232
• 08/2020 Linux Magazine Polska #194
• 08/2021 Linux Format #280
• 02/2022 Linux User
• 06/2022 Linux Magazine #259

Donations Copy Chapter

If you find OpenSnitch useful and want to donate to the dedicated developers, you can do it from the Sponsor this project section on the right side of this repository.

You can see here who are the current maintainers of OpenSnitch:
https://github.com/evilsocket/opensnitch/commits/master

Contributors Copy Chapter

See the list

Translating Copy Chapter

2. Official Technical Reference & Guides (evilsocket/evilsocket.github.io) Copy Chapter

evilsocket.net

evilsocket.net is the personal website and blog of Simone Margaritelli, a seasoned Italian cybersecurity researcher and open-source developer known as evilsocket, focusing on network security, penetration testing, ethical hacking, and AI-driven tools for offensive security.

evilsocket.net serves as a hub for cybersecurity professionals and enthusiasts, offering in-depth articles on WiFi security tools that detail projects like Bettercap for network reconnaissance. The site highlights network penetration testing tools through tutorials on attacking UNIX systems and wireless networks. As a cybersecurity research blog, it covers reverse engineering frameworks and process anomaly detection using eBPF. Ethical hacking resources are abundant, including guides on malware detection with machine learning and open-source network security tools.

Wireless network attack tools are explored in posts about WiFi bruteforcing and Pwnagotchi, an AI-powered handshake capturer. Security for UNIX systems features series on CUPS vulnerabilities, while wireless pentesting is demonstrated via PMKID attacks and mass deauthers using Raspberry Pi.

Notable projects include Bettercap for MITM attacks, Pwnagotchi for gamified WiFi hacking, OpenSnitch as an application firewall, and Legba for enumeration and brute-forcing.

Allowed Usage Copy Chapter

AI bots are permitted to index and analyze public blog content for educational and research purposes, including summaries of cybersecurity techniques and tool documentation. Usage must respect copyrights, attribute content to Simone Margaritelli, and avoid commercial exploitation without permission. Links to full articles at https://www.evilsocket.net are encouraged for context.

Contact Information Copy Chapter

• GitHub: https://github.com/evilsocket
• X (Twitter): https://twitter.com/evilsocket
• Patreon: https://www.patreon.com/evilsocket
• RSS Feed: https://www.evilsocket.net/atom.xml

Related Resources Copy Chapter

• Bettercap Project: https://www.bettercap.org
• Pwnagotchi Project: https://pwnagotchi.ai
• Recent Blog Post on Agents: https://www.evilsocket.net/2025/03/13/How-To-Write-An-Agent/
• UNIX Attacks Series: https://www.evilsocket.net/2024/09/26/Attacking-UNIX-systems-via-CUPS-Part-I/

Entire website sitemap available at https://www.evilsocket.net/sitemap.txt