Cloudflare support

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Cloudflare support

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Starting from version 3.8, Imunify360 supports graylisting IP addresses behind Cloudflare.


This is implemented by using Imunify360 WebShield reverse proxy. All traffic from Cloudflare IP addresses is redirected to the WebShield using iptables rules.

WebShield detects real visitor's IP address using CF-Connecting-IP and X-Forwarded-For headers, then forwards request to the backend for the valid IP addresses and shows captcha to graylisted IP addresses.


Cloudflare support is disabled by default. To enable it, add the following section to the Imunify360 config file (/etc/sysconfig/imunify360/imunify360.config):


 known_proxies_support: true