Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.
Parses logs for attacks and bans the sources, with shared blocklists and bouncers for many proxies and firewalls.
Fail2ban
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- 1.1.12026-08-151.1.1 (2026/08/15) - triple-one-win
- 1.1.02024-04-251.1.0 (2024/04/25) - object-found--norad-59479-cospar-2024-069a--altitude-36267km
- 1.0.22022-11-091.0.2 (2022/11/09) - finally-war-game-test-tape-not-a-nuclear-alarm
- 1.0.12022-09-271.0.1 (2022/09/27) - energy-equals-mass-times-the-speed-of-light-squared
- 0.11.22020-11-230.11.2 (2020/11/23) - heal-the-world-with-security-tools
✓ signed The latest release, 1.1.1, carries a signature GitHub verified.
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