Block abusive IP addresses with Pf-badhost in OpenBSD.

Pf-badhost is a very practical, robust, stable and lightweight security script for network servers. It prevents potentially-bad IP addresses that could possibly attack your servers (and waste your bandwidth and fill your logfiles), by blocking all those IPs contacting your server, and therefore it makes your server network/resources lighter and the logs of important services running on your server become simpler, more readable and efficient...

https://ozgur.kazancci.com/block-abusive-ip-addresses-with-pf-badhost-in-openbsd-a-must-have-security-tool/

https://www.geoghegan.ca/pfbadhost.html

#pf #firewall #feedback