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Linux Hardening - what are you must-haves? (infosec.pub)

submitted 11 months ago by wop@infosec.pub to c/cybersecurity@infosec.pub

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I'm working on a guide focused on securing Linux servers and I'd like to ask you what your essential hardening techniques and tips are? Your feedback would be greatly appreciated

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[–] demesisx@infosec.pub 1 points 11 months ago* (last edited 11 months ago)

Here’s how this concept made it onto my radar. This is an obsessively paranoid NixOS config and accompanying article:

https://xeiaso.net/blog/paranoid-nixos-2021-07-18/

Also, for further reference:

There’s a whole subsection of nixpkgs that could be helpful for a hardening guide:

https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/profiles/hardened.nix

Also, there are a few articles walking us through hardening Nix:

https://dataswamp.org/~solene/2022-01-13-nixos-hardened.html

On NixOS Discourse:

https://discourse.nixos.org/t/hardening-systemd-services/17147/6