fail2ban

fail2ban

Daemon to ban hosts that cause multiple authentication errors

github Security Python free
★ 17,697Stars
1,475Forks
17,697Watchers
1Views
Apr 2026Last Update

About fail2ban

Daemon to ban hosts that cause multiple authentication errors

What you should know about fail2ban

fail2ban — Daemon to ban hosts that cause multiple authentication errors. It is categorized under Security and primarily built with Python. The project has gathered 17,697 stars and 1,475 forks on GitHub, indicating strong adoption among developers.

Pricing & licensing: This tool is offered free of charge , released under the Unknown license. The source code is openly available on GitHub, allowing engineers to audit, contribute, or fork as needed.

Use cases & topics: fail2ban is associated with the following topics: anti-bot, attack-prevention, ban-hosts, ban-management, bsd, fail2ban, gplv2, hids. Teams working in anti-bot / attack-prevention / ban-hosts spaces typically evaluate this kind of tool when scoping new architecture decisions or replacing legacy components.

Getting started: Check out the official GitHub repository for installation steps, configuration examples, and the latest release notes. Most teams hit value within the first week if the tool aligns with their existing Security stack.

Editor's note from Fanny Engriana (Founder, Wardigi Digital Agency): when evaluating tools in the Security category for our agency clients, we look at three things first — license clarity, community size, and active maintenance. Tools with explicit license terms and ongoing commits tend to remain viable across multi-year projects.

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