OpenSnitch
Open Source GPL-3.0Application firewall for Linux desktops
Website
github.com/evilsocket/opensnitch GitHub
evilsocket/opensnitch Difficulty
●● Medium Last check
2026-04-17 Description
OpenSnitch is a GNU/Linux application firewall that gives users control over which programs are allowed to establish network connections. Inspired by the macOS firewall Little Snitch, OpenSnitch displays a dialog for every outgoing connection and allows creating persistent rules for applications. Centralized management of multiple systems is possible through a daemon.
Preview
Platforms
Linux
Replaces the following proprietary tools
Cisco ASA → OpenSnitch
proprietary firewalls → OpenSnitch
Self-Hosting
OpenSnitch can be self-hosted on your own infrastructure. Visit the official documentation for installation instructions.
Documentation →Categories
Tags
#application-firewall
#desktop
#little-snitch
#regeln
#go
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