Today, I’m going to show you a simple but effective way to automatically block suspicious IPs using a small script and tools like iptables and Fail2Ban. These tools are powerful, lightweight, and can help secure your Linux server from brute-force attacks, bots, or any malicious traffic.
This guide is beginner-friendly and great for system administrators, students, or anyone who runs a VPS, web server, or even a home Linux server.