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Just read Madaidans Insecurities. Do you know how much is still relevant?
(www.madaidans-insecurities.github.io)
From Wikipedia, the free encyclopedia
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 remember reading there, when it wasn't on github pages but it's own website, the recommendation to keep your critical dotfiles permissioned to a different user account of yours. I don't think that's bad advice. Yes it is probably not needed if you use the system as a pro sysadmin for server purposes, but for desktop use it's just natural that you'll run a lot more programs in a much less controlled manner.
Of course there were ones that I thought they went overboard, but it has at least a few good pieces, if not more, I don't really remember.