Crowdsec Has a Free Intrusion Prevention System — Community-Powered Security for Servers

CrowdSec is a collaborative, open-source intrusion prevention system (IPS). What You Get for Free Log analysis — detect attacks from nginx, SSH, WordPress, and 100+ services Community blocklists — shared threat intelligence from 200K+ users Bouncers — automatically block attackers (firewall, nginx, Cloudflare) Scenarios — detect brute force, DDoS, credential stuffing, scanners Console — web dashboard for monitoring and management API — programmatic access to decisions and alerts Multi-platform — Linux, Windows, Docker, Kubernetes Free console — up to 5 security engines, 10 bouncers Quick Start # Install on any Linux curl -s https://install.crowdsec.net | bash # Install firewall bouncer (auto-blocks attackers) sudo apt install crowdsec-firewall-bouncer-iptables # Enroll in console (free dashboard) sudo cscli console enroll YOUR_KEY # Check detected attacks sudo cscli alerts list sudo cscli decisions list Why Sysadmins Choose It Over Fail2ban Fail2ban is reactive and isolated. CrowdSec: