this post was submitted on 26 Apr 2025
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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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If your linux OS supports secure boot then it does help improve security.
The differing opinions on it are often because it can cause issues in some set ups and in a default set up its only a marginal security gain.
It will add a layer of security at boot by preventing 3rd party unauthenticated processes / software from running and creates a secure boot chain from your BIOS up to the OS. But the default set up also means other authenticated OSes like Windows can be run, so its not as secure as it could be.
To really secure it you could create your own keys and then only your OS could boot. But as a linux newbie thats likely way more than you need and there are risks if you fuck up, to the point of accidentally locking you out of your own machine
So your choice is really just the default set up being on or off. On is a bit more secure but if you experience any issues then turn it off and don't worry about it.