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this post was submitted on 02 Mar 2024
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Linux
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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.
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I don't really bother with AV on my linux system. What I do is just use trusted software from my repos and run containerized applications.
What I am currently working on is using secure boot with a Unified Kernel Image (already doing that) that boot into a read-only
/usr/partition with verity + signature (one UKI only loads a certain partition with a specific signature, or nothing at all). Any other things I need I create a systemdsysextthat gets overlayed ontop of/usr/(also read-only) or they get installed as flatpak. For development I would just be using nspawn containers and podman/OCI containers for services that are outside of the other scopes.This is all based on https://0pointer.net/blog/fitting-everything-together.html which is a nice write down of what I am doing/following.
That already covers a lot of different attack vectors by just not having my system be modifyable outside of my control or apps just being containerized.