this post was submitted on 11 Nov 2023
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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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In 2000 I was running my first Linux homelab server, I ran chmod -R 666 /, it did not end well.
I came here to comment basically this. Except I did it last year and accidentally broke that system. Was trying to do the working directory and mistyped and did the root dir.
For those that don't know, so many elevated permissions commands fail if permissions are too open. And even ssh breaks because your certs and authorized_keys need to be only readable by you.
I luckily was able to wipe and just restore an older image backup.
Yeah and you also need execute permissions to read what's in a directory, so 666 for the whole system means you basically lose access to 99% of files
Yes, I learned very quickly that +1 in this flag syntax means execution, so first 6 means that owner of the file does not have execution permission, which means that nothing is allowed to execute in the system.