this post was submitted on 19 Aug 2025
39 points (100.0% liked)
Linux
65938 readers
677 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 7 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
You are looking for an outbound firewall
Like the others recommended
OpenSnitch has multiple detection ways, eBPF might require activation in the kernel, there are others too, 4 in total
For me on NixOS it worked in eBPF and proc mode. NixOS' weird binary placement makes rules less secure I guess as it can only check commands (if it were nix-native it could use a function for that)
And I had tons of "unknown process"es which I needed to allow to not break things, which kinda makes the thing useless