invisnet

No matter how good your anti-spam measures, some will get past. This add-on logs spam form submissions via <a href="https://wordpress.org/plugins/wp-fail2ban/" rel="ugc">WP fail2ban</a>, and provides a new filter for <code>fail2ban</code>.

WP fail2ban Add-on for Contact Form 7

WP fail2ban Integration with Contact Form 7 to log spam form submissions.

There are many plugins that use a database to check for malicious IPs after they connect, and of course <code>fail2ban</code> stops repeated attacks, but what if bad IPs could be blocked before they attack?
By working collaboratively – sharing attack data – WP fail2ban Blocklist does exactly that.
The Blocklist Network Service (BNS) collects attack data from participating sites, performs some analytical magic, and sends back a list of IPs that are attacking sites now but haven’t yet attacked that site. In other words, each site periodically gets a unique list of IPs to block preemptively.
<h4>GDPR</h4>
The BNS doesn’t collect personal data, and bots don’t have rights.
That said, the BNS only collects the minimum data required (time, IP, event), and only for IPs that have behaved maliciously.
Of course, it is possible that some data is generated by people behaving maliciously, but the BNS has no way to differentiate – and nor should it: an attack is an attack.
<h4>Freemius</h4>
To work, the BNS must know:
<ul>
<li>which sites are running the blocklist add-on,</li>
<li>which version is in use,</li>
<li>and a shared secret for secure communication.</li>
</ul>
Freemius already provides all these, and WP fail2ban already uses Freemius; why reinvent the wheel?
Therefore, unlike the core WP fail2ban plugin, you must opt into Freemius for the blocklist to work.

WP fail2ban Blocklist

WP fail2ban Blocklist is a collaborative preemptive blocklist for WordPress.

WP fail2ban Add-on for Contact Form 7 vs WP fail2ban Blocklist