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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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Comprehensive guide to hardening RHEL clones? (lemmy.dbzer0.com)

submitted 6 days ago by marauding_gibberish142@lemmy.dbzer0.com to c/linux@lemmy.ml

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Is there some sort of comprehensive guide on hardening RHEL clones like Alma and Rocky?

I have read Madaidan's blog, and I plan to go through CIS policies, Alma and Rocky documentation and other general stuff like KSPP, musl, LibreSSL, hardened_malloc etc.

But I feel like this is not enough and I will likely face problems that I cannot solve. Instead of trying to reinvent the wheel by myself, I thought I'd ask if anyone has done this before so I can use their guide as a baseline. Maybe there's a community guide on hardening either of these two? I'd contribute to its maintenance if there is one.

Thanks.

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[–] Charger8232@lemmy.ml 1 points 5 days ago (1 children)

Why do you rank secureblue over Whonix?

Whonix on its own isn't very secure. It's more privacy focused than security focused. It's based on Debian, which has a host of issues I won't get into. dom0 in Qubes OS is based on Fedora for its security, and it's no coincidence that secureblue is also based on Fedora.

[–] marauding_gibberish142@lemmy.dbzer0.com 1 points 5 days ago (1 children)

Dom0 being based on Fedora has been a gripe of mine for a while now. Fedora isn't that secure without some effort either. Unfortunately, I have no way to confirm which one out of them is "more secure".

Do you have any sort of automated test framework in mind which one can use to test distros against attacks?

[–] Charger8232@lemmy.ml 2 points 5 days ago

Fedora isn’t that secure without some effort either.

Fedora's philosophy is being a modern and security oriented (not security focused) distro. An easy example is that Fedora uses Linux kernel 6.14.2, whereas Debian uses Linux kernel 6.1 (I know they backport fixes, but the point remains).

Unfortunately, I have no way to confirm which one out of them is “more secure”.

Do you have any sort of automated test framework in mind which one can use to test distros against attacks?

Generally trust what security experts say about it, but if you really want an automated test, you can look at Lynis