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CrowdSec
CrowdSec is a collaborative, behavior-based intrusion detection engine that parses logs for attack patterns and shares anonymized threat signals across its community, then relies on separate 'bouncer' components to actually block traffic.
Ce guide est élaboré à partir de la documentation officielle de CrowdSec, dont le lien figure ci-dessus — vérifiez toujours les noms exacts des paquets/versions avant d'exécuter ces commandes sur un serveur de production, car les versions de la distribution et du projet évoluent avec le temps.
1Install the Security Engine via the official repository script
curl -s https://install.crowdsec.net | sudo shsudo apt install crowdsecThe script only registers the official CrowdSec package repository; you still install the package explicitly afterward.
2Verify the service is running
sudo systemctl status crowdsec3Add a Remediation Component
CrowdSec's Security Engine only detects and decides — you need a bouncer (e.g. firewall or Nginx bouncer) installed separately to enforce bans.