Linux Tutorials
How To Install Wazuh SIEM on Ubuntu 26.04 LTS
Running a server without a SIEM in 2026 is a losing game. Logs scroll past, failed logins pile…
Series: Ubuntu 26.04 Security & Hardening
Linux Tutorials
Ubuntu 26.04 Post-Quantum SSH Hardening Guide (ML-KEM Kex)
A quantum computer powerful enough to break classical SSH key exchange does not exist yet. The problem is…
Linux Tutorials
How To Configure AppArmor on Ubuntu 26.04 LTS
AppArmor has been Ubuntu’s default Mandatory Access Control layer for over a decade, and on Ubuntu 26.04 LTS…
Linux Tutorials
How To Install ClamAV Antivirus on Ubuntu 26.04 LTS
ClamAV is the open source antivirus scanner most Linux shops reach for when they need signature-based malware detection…
Linux Tutorials
How To Set Up SSH Key Authentication on Ubuntu 26.04 LTS
Passwords on SSH are a bad idea. Brute-force bots hammer port 22 around the clock, and even a…
Linux Tutorials
Install Fail2ban on Ubuntu 26.04 LTS
Every internet-facing Ubuntu server takes a constant beating from SSH brute force, WordPress login spray, and bot scanners.…
Linux Tutorials
Install CrowdSec on Ubuntu 26.04 (Fail2ban Alternative)
Fail2ban has been the default answer for “block brute-force attempts” on Linux servers for over a decade. It…
Linux Tutorials
How To Set Up OpenVPN on Ubuntu 26.04 LTS
You want a VPN that lives on your own box, terminates where you decide, and logs exactly what…
Linux Tutorials
How To Harden Ubuntu 26.04 LTS Server (Complete Security Guide)
A freshly installed Ubuntu 26.04 server is reasonable out of the box, but it is not hardened. Default…
Linux Tutorials
How To Install WireGuard VPN on Ubuntu 26.04 LTS
Every remote worker, every road-warrior laptop, every home-lab server that needs to reach the office safely ends up…
Linux
How To Configure UFW Firewall on Ubuntu 26.04 LTS
A fresh Ubuntu 26.04 server accepts connections on every open port by default. That is fine on a…
Debian
Install sudo-rs: Memory-Safe sudo for Linux
Every Linux system has sudo. It’s the single binary standing between your unprivileged user account and full root…