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Fail2banCrowdSec
Free

The open-source software is available without a license fee. Hosting, hardware and…

 Free

The open-source software is available without a license fee. Hosting, hardware and…

Linux, Self-hosted, Command line Windows, Linux
  • Cuts SSH and web brute-force noise dramatically with one jail enabled
  • Filters and actions are plain configuration files, easy to extend
  • Supports community intelligence and configurable detection scenarios.
  • Regex-based log parsing breaks when a service changes its log format
  • Only reacts after failures are logged; it is not a preventive control
  • Traffic blocking requires the appropriate enforcement integration.
Self-hosted Downloadable app
Open source Open source
License: GPL-2.0 License: MIT
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.