If you're looking for outgoing requests, check out OpenSnitch. It should do exactly what you're looking for.
Thank you! Exactly what I'm looking for.
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
Thanks 🙏 Opensnitch is exactly what I'm looking for
You could drop all and use the log function to see all traffic denied
Thanks, I'm aware, but I'm looking for an interactive application that lets me create rules on the fly. I don't want to have a one-time session where I check which tools connect to what, but rather something that interrupts me throughout the day...
If such a thing doesn't exist, tipps on how to build it are welcome too though.
Script that monitors the logs and uses notify-send to throw a popup? Not yet fully interactive but could be a start
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.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0