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.
There are none. ClamAV is the only one there is, because it has a very specific and narrow purpose. There are no viruses for Linux.
Chrootkit and rkhunter are also built for very specific things (detecting rootkits - or making them) and are not designed to protect, they are designed to analyse.
My writing here also isn’t specifically to OP, but to all others that may find this thread - Anti Virus for Linux is BS and unless you are running SMB and still have lots of Windows in your network, it’s absolutely not needed, especially if you follow the basics (like not doing stuff as root, using sudo and not giving out any system rights).
Blatant lies.
https://en.m.wikipedia.org/wiki/Linux_malware
Which is exactly what I said. ClamAV serves a very specific purpose and that’s this one.
There are still no viruses for Linux specifically designed to break in to Linux, because it’s not possible.
Here is just one example that proves your assertion wrong.
https://www.f-secure.com/v-descs/slapper.shtml
Right. Completely proven wrong.
So if I’m reading this correct the vulnerability was patched before the worm got programmed and it peaked at 2000 machines infected when it targeted apache servers running openssl, which back in 2002 was basically any encrypted website.
Don’t know how an AV would have helped there.
Simply refuting the BS claim that it’s impossible for there to be a Linux virus.
This one existed, therefore the claim is false.
The claim was within the context of AV software, not a general one.
Mirai and other botnets, coin miners, ransomware… Do you think that malware makers just decided to ignore the billions of Linux servers and IoT devices that exist?
I agree with you, but, it is also true that the overwhelming majority of ransomwares affect windows https://www.statista.com/statistics/701020/major-operating-systems-targeted-by-ransomware/
Linux is not a significant target despite being so diffused
Edit. For those downvoting, windows server is ~20% of the server market and it is second in that stat. GNU/Linux distros such as rhel, debian and so on are almost 80% of server market and still there are no sufficient attacks reported to end up in that stat
True, but the largest botnet in the world runs purely on Linux devices
It targets router firmwares though… These bot farms do not usually target real gnu/Linux os, because it is easier and more effective to attack router firmwares that are not well configured by producers and telcoms, and are practically never upgraded.
Therefore they are not a real threat for standard mint or popOS user… Let alone gentoo users
Edit. See https://en.m.wikipedia.org/wiki/Mirai_(malware)
I dont understand why you’re getting downvoted for this.