From the course: Learning CentOS Linux
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Introducing SELinux
- [Instructor] A whole lot of people's first interaction with SELinux starts out with head scratching and frustration, and ends with shutting off SELinux completely. But SELinux is an important part of the security of your server, and it's worth taking a little time to understand. SELinux, or Security-Enhanced Linux was originally developed by the American National Security Agency to provide access control security policies for Linux installations. Unlike the standard security scheme of users, groups and permissions, SELinux tags every file and resource on the system to add a more granular security system with lots of advantages. This tagging is based on the idea that when a process in Linux runs it inherits the rights and privileges of the user or process that started it up. For most things this makes a lot of sense. If I open a text editor, the text editor has access to the same files I have access to. It can write to my home folder and it can edit files that I've created. But this…
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