November 2015
Beginner
260 pages
6h 10m
English
Content preview from Mastering Linux Network AdministrationBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Understanding SELinux
Security Enhanced Linux (SELinux) is a kernel module intended to increase security by enforcing the Mandatory Access Control. This concept gives you the control to ensure that users and applications are only able to access the things that they absolutely need to in order to complete the tasks they are designated to perform. While firewalls help protect the system against intrusion from the outside, SELinux helps prevent resources on the inside from doing things that they aren't supposed to be doing. This may sound vague, because it is how SELinux is used, and how you can benefit from it depends solely on how you implement it. Want to prevent a user from making a very private file world-readable? Sure, you can do that. Perhaps ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.