How the FSF sysadmins block botnets with reaction
Summary
The FSF blog post explains how FSF sysadmins use the Reaction open-source tool, alongside Fail2Ban and ipset, to block botnets and scraper traffic. It covers identifying malicious patterns, dealing with Vo1d/Popa botnets, scaling rule sets, and publishing their configurations upstream, highlighting practical, community-driven defense of free software sites.