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Crowdsec is an open source Intrusion Prevention System that maintains a global IP blacklist.


 $ curl -s | sudo bash
 $ sudo apt install -y crowdsec crowdsec-firewall-bouncer-iptables
 $ sudo systemctl enable crowdsec
 $ sudo systemctl start crowdsec
 $ sudo systemctl reload crowdsec
 $ sudo systemctl status crowdsec

Useful Commands

 $ sudo cscli collections list
 $ sudo cscli metrics
 $ sudo cscli alerts list
 # Interactive config
 $ sudo /usr/share/crowdsec/ -c