SELinux is a Linux kernel security module that brings heightened security for Linux systems. This series introduces basic SELinux terms and concepts, demonstrating how to enable SELinux, change security settings, check logs, and resolve errors. After completing all three steps, you will have a working CentOS 7 system with SELinux enabled, with four users added with differing degrees of access.

This is the first article in the Introduction to SELinux series. Learn how to safely enable SELinux, install supporting packages, and understand basic SELinux concepts and terminology.

This is the second article in the Introduction to SELinux series. This article focuses on SELinux types and domains, which relate to file and process contexts. Get into the details of SELinux security policy and learn how to fix context errors.

This is the third article in the Introduction to SELinux series. This article focuses on SELinux users and role-based access. Learn how to check logs and resolve errors.