Iptables drops the cloudflare IP addresses

Hi Everyone,

I have a problem with iptables. I added the Cloudflare IP’s to whitelist using this document. https://support.cloudflare.com/hc/en-us/articles/201897700-Whitelisting-Cloudflare-IP-addresses

But sometimes iptables drops the Cloudflare IP address and my website can’t be reached. What I need to do to prevent this situation?

Here is the screenshot:

Thanks for the support.

I forget to mention that. I also added Cloudflare IP address to my .htaccess document.


I’ve never seen iptables adding rules on it’s own. Any chance that there is a software like fail2ban or similar active?

That’s an unnecessary redundancy

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Hi Mark,

Thanks for the response.

I checked the apache modules. It seams “mod_security” and “mod_evasive” is active. Do you suggest that, disabling these modules?

If I disable them ddos protection is covered by cloudflare right? Do you have any suggestion about Firewall rules or etc. to keep my site from ddos attack?


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