Open Source Alternatives to Fail2Ban

A security utility that monitors log files and bans IP addresses exhibiting malicious behavior, protecting services such as SSH from brute-force attacks.

Whether you want to cut software costs or escape vendor lock-in, these open source alternatives to Fail2Ban give you an option you fully own. You can self-host them, so your data stays on infrastructure you control. This page lists 1 open source alternative to Fail2Ban. The most popular is IPBan. It uses the MIT license.