this post was submitted on 08 Apr 2024
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Linux
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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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Fun fact (that I just took advantage of in a CTF), sudo can also limit command line arguments. If you only want a user to restart a service but not stop it, you can restrict sudo to only
You can also use regex expressions. In our work env, we have specific id's that are allowed to run certain commands. And only certain people have the ability to "sudo su - [authorized id]". Then when you are using that id, you have commands you can run specific to the job. Also worth noting, those id's are set to not allow login. You have to sudo to be able to get to the id.