this post was submitted on 10 Dec 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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Another step up is the confidential computing project. Requires hardware that supports it though, which sucks, but takes the virtual hardware concept and adds multi key memory encryption on top.
Remember though security without a threat model is just paranoia, so what level of hoops and investment you need really depends on what your threats actually look like.
I personally love containers and Macsec. It limits most of my concerns. I want to mess with confidential containers next, which is to say lightweight VMs in containers with memory encryption set, but thats all future to me. The irony is that I then I have to figure out attestation better for those machines since from the host they are black boxes.