TL;DR - What are you running as a means of “antivirus” on Linux servers?
I have a few small Debian 12 servers running my services and would like to enhance my security posture. Some services are exposed to the internet and I’ve done quite a few things to protect the services and the hosts. When it comes to “antivirus”, I was looking at ClamAV as it seemed to be the most recommended. However, when I read the documentation, it stated that the recommended RAM was at least 2-4 gigs. Some of my servers have more power than other but some do not meet this requirement. The lower powered hosts are rpi3s and some Lenovo tinys.
When I searched for alternatives, I came across rkhunter and chrootkit, but they seem to no longer be maintained as their latest release was several years ago.
If possible, I’d like to run the same software across all my servers for simplicity and uniformity.
If you have a similar setup, what are you running? Any other recommendations?
P.S. if you are of the mindset that Linux doesn’t need this kind of protection then fine, that’s your belief, not mine. So please just skip this post.
AFAIK this is not what happens on NixOS. Every package gets installed into a directory that’s a hash of its dependencies in the nix store, but there’s no special isolation or anything on NixOS (well, when the packages are built there’s some isolation, but that’s mostly to keep the builds honest). That said, NixOS is a little better than most distros about creating separate daemon users for services with different permissions, but I don’t think it’s done universally. I love NixOS and it has many benefits, but I don’t think this is one.
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No, it’s NixOS. Every package is self-contained in its own directory, which acts as chroot.
AFAIK this is not what happens on NixOS. Every package gets installed into a directory that’s a hash of its dependencies in the nix store, but there’s no special isolation or anything on NixOS (well, when the packages are built there’s some isolation, but that’s mostly to keep the builds honest). That said, NixOS is a little better than most distros about creating separate daemon users for services with different permissions, but I don’t think it’s done universally. I love NixOS and it has many benefits, but I don’t think this is one.