this post was submitted on 15 Sep 2026
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Linux
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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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Honestly the biggest things are don't run shit as root and don't expose port 22. Especially don't run things you downloaded from some website as root but in general just don't run things as root. That'll handle most problems that are likely to arise.
I'll also add that if you do enable SSH and are stupid enough to expose port 22, then at least make sure you have key-based authentication instead of password authentication and keep your keys safe.