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OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.
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Gustavo Iñiguez Goia 2f1a9b8c9e
on errors stop established conns monitor 
There's a long running task that monitors established connections every
~2s.

When a connection is not found via ebpf or proc, sometimes it's found
there so we can use the inode to search for the process.

However on some systems the netlink call to dump the sockets may fail
continuously, wasting resources. It'll also fail if you block connections
to port 0 (common case for ICMP packets).

So if there're too many errors dumpng the sockets, stop this task for
these cases.
2024-01-20 23:37:51 +01:00
.github ci: use go1.20 compiler 2023-10-23 20:32:29 +02:00
daemon on errors stop established conns monitor 2024-01-20 23:37:51 +01:00
ebpf_prog ebpf: delete pid from exec maps if it exists 2024-01-08 01:33:54 +01:00
proto rules: improved operator list parsing and conversion 2023-10-09 14:55:15 +02:00
screenshots added more screenshots 2020-02-25 22:39:32 +01:00
ui ui: display alert details by double-clicking on it 2024-01-04 12:15:39 +01:00
utils rpm pkgs: changed autostart path 2023-11-29 22:54:02 +01:00
.gitignore misc 2023-07-23 22:29:47 +02:00
LICENSE Update LICENSE 2020-06-20 17:48:59 +02:00
Makefile makefile: 2021-02-13 18:48:49 +03:00
README.md addded donations section 2023-06-12 16:19:10 +02:00
release.sh misc: small fix or general refactoring i did not bother commenting 2018-04-10 19:49:58 +02:00

README.md

opensnitch

Release Software License Go Report Card Packaging status

OpenSnitch is a GNU/Linux application firewall.

•• Key Features • Download • Installation • Usage examples • In the press ••

OpenSnitch

Key features

Download

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

Installation

deb

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

rpm

$ sudo yum localinstall opensnitch-1*.rpm; sudo yum localinstall opensnitch-ui*.rpm

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

Please, refer to the documentation for detailed information.

OpenSnitch in action

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

Donations

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

See the list

Translating

Translation status