Security-Enhanced Linux (SELinux) is a Linux mandatory access controls, through the use of Linux Security Modules (LSM) in the Linux kernel. SELinux is enabled by default in RHEL 5 / CentOS 5 / Fedora etc. But many admin disabled it due to troubles and hard configuration options. So if you are afraid of SELinux, try new GUI tools to customizing your system’s protection by creating new policy modules is easier than ever. In this article, Dan Walsh gently walks you through the policy module creation process:
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A lot of people think that building a new SELinux policy is magic, but magic tricks never seem quite as difficult once you know how they're done. This article explains how I build a policy module and gives you the step-by-step process for using the tools to build your own.