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# crowdsec-firewall-bouncer Crowdsec bouncer written in golang for firewalls. crowdsec-firewall-bouncer will fetch new and old decisions from a CrowdSec API to add them in a blocklist used by supported firewalls. Supported firewalls: - iptables (IPv4 :heavy_check_mark: / IPv6 :heavy_check_mark: ) - nftables (IPv4 :heavy_check_mark: / IPv6 :heavy_check_mark: ) - ipset only (IPv4 :heavy_check_mark: / IPv6 :heavy_check_mark: ) - pf (IPV4 :heavy_check_mark: / IPV6 :heavy_check_mark: ) # Installation Please follow the [official documentation](https://doc.crowdsec.net/docs/bouncers/firewall).