20a03e11fe
Sometimes the source IP of an outbound UDP connection is specified via ancillary messages, by using IP_PKTINFO or IPV6_PKTINFO. In these cases the source IP of the sock struct is empty (0.0.0.0, sk->__sk_common.skc_rcv_saddr). Now in udp_sendmsg(), if sk->sk_rcv_saddr is empty, we'll try to extract it from the ancillary message. IPv4 only for now. |
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| daemon | ||
| ebpf_prog | ||
| proto | ||
| screenshots | ||
| ui | ||
| utils | ||
| .gitignore | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
| release.sh | ||
OpenSnitch is a GNU/Linux application firewall.
•• Key Features • Download • Installation • Usage examples • In the press ••
Key features
- 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
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
- 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
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
Translating
