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How to protect your Joomla instance from brute force attacks with Fail2ban

If you administer at least one Joomla instance you’ll be subject to brute force attacks before or after. Fail2ban is a very nice service written in Python which periodically scans your log files looking for signs of brute force attacks and perform some actions when an attack is discovered. The most common actions is to ban the attacker IP at firewall level and send an email to the server administrator.

Fail2ban comes bundled with filters for many common services (ssh, apache authentication, etc.), but it lacks a built-in Joomla integration. Anyway it’s easy to add a Joomla filter to Fail2ban, here I explain how to do it.

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