Update Fail2Ban apache-security.conf filter for security2 module
This article details how to update the apache-modsecurity filter that comes with Fail2Ban so that it will work with ModSecurity2 (security2_module).
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Fail2Ban filter for NinjaFirewall
This article outlines how to add a Fail2Ban filter that detects Brute Force login attacks logged by Ninjafirewall and ban the attacker’s IP address. An example is also given to show how to make this work with caching and proxy services like CloudFlare.