Arch Linux Hardening Guide
July 12, 2025
10 min read
Installing Arch Linux is just the beginning. To truly secure your system, you need to implement a defense-in-depth strategy that starts from the kernel and goes up to your desktop environment.
Kernel Hardening
Using the `linux-hardened` kernel is the first step. It includes several patches that mitigate common memory corruption vulnerabilities.
In this guide, we'll cover disk encryption (LUKS), firewall configuration with UFW, and the use of AppArmor profiles to sandbox invasive applications.