# Administration, Security, chmod, ls, SELinux

Published articles for Administration, Security, chmod, ls, SELinux.

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## What Is SELinux?

DevFeed: [What Is SELinux?](<https://devfeed.tech/articles/what-is-selinux-4516.md>)

Original publisher: [Read original article](<https://feeds.feedblitz.com/~/919939004/0/baeldung/linux~What-Is-SELinux>)

Author: Zachary Bouhannana

Published: 2025-06-09T04:53:08Z

Content type: tutorial

Language: en

Sources: [Baeldung - Linux](<https://devfeed.tech/sources/baeldung-linux.md>)

Topics: [SELinux](<https://devfeed.tech/topics/selinux.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [Security](<https://devfeed.tech/topics/security.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [Operating system](<https://devfeed.tech/topics/operating-system.md>)

Tags: [access-control](<https://devfeed.tech/tags/access-control.md>), [administration](<https://devfeed.tech/tags/administration.md>), [administration-security-chmod-ls-selinux](<https://devfeed.tech/tags/administration-security-chmod-ls-selinux.md>), [chmod](<https://devfeed.tech/tags/chmod.md>), [linux](<https://devfeed.tech/tags/linux.md>), [ls](<https://devfeed.tech/tags/ls.md>), [processes](<https://devfeed.tech/tags/processes.md>), [security](<https://devfeed.tech/tags/security.md>), [selinux](<https://devfeed.tech/tags/selinux.md>), [tutorial](<https://devfeed.tech/tags/tutorial.md>)

### AI overview

This tutorial explains SELinux, a security module built into the Linux kernel that adds mandatory access control beyond traditional Unix-style permissions. It describes how SELinux policies govern interactions between processes, users, and system resources, including limiting actions by root, and contrasts this model with discretionary access control.

### Source excerpt

Learn what SELinux is, how it works, and the way it can provide better security when paired with the common discretionary access control. The post What Is SELinux? first appeared on Baeldung on Linux. Related Stories Sending a Password via SSH or SCP Using subprocess.Popen in Linux Resolving the Reverse Tunnel Remote port forwarding failed for listen port SSH Error How to Fix USB Sticks Mounted as Read-Only