Secure Debian 13 — Complete Hardening Guide | UFW, AppArmor, Fail2Ban, ClamAV & Kernel Tweaks

This short video shows how to quickly secure Debian 13 using reliable, real-world hardening steps that work on both desktops and servers. In just a few minutes, we walk through the essential commands that strengthen Debian’s security without adding complexity or breaking stability.

You’ll see how to update Debian 13 properly, enable and verify the UFW firewall, activate Fail2Ban for protection against repeated login attempts, switch AppArmor profiles into enforce mode for stronger sandboxing, disable unused background services, apply basic kernel hardening, and set up ClamAV to scan files and USB drives for threats. All commands are tested, lightweight, and fully compatible with Debian 13’s default configuration.

This guide is perfect for anyone who wants fast, effective security improvements on Debian—whether you’re running a workstation, a lightweight laptop, or a home server. No complex configuration, no risky tweaks. Just clean, essential hardening steps that give Debian 13 a stronger security baseline.

Chapters:
00:00 Intro — Quick security goal
00:10 Update & Patch Debian 13
00:30 Enable UFW Firewall
00:50 Install & Start Fail2Ban
01:10 AppArmor Enforce Mode
01:30 Disable Unused Services
01:45 Kernel Hardening
02:05 Install & Update ClamAV
02:30 Quick Scan Example
03:00 Final Security Recap

For Users:
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