/wp-admin/admin-ajax.php

Hi there, anyone ever experienced some issue with the /wp-admin/admin-ajax.php ?

My website runs in a hostgator dedicated server that is being droped down by attacks or an “internal error”…

I’m trying to cover all possibilities here, so i will show you 2 screenshots from my SSH:

This one when the server was shutted down: Imgur: The magic of the Internet

And this other one in the hour 12:20 Imgur: The magic of the Internet

And all other hours are the same processes and IP’s. (i do not have mod_Cloudflare yet, so it show Cloudflare IP’s)

  1. In the case of an “internal error” i searched this :Very High Memory and CPU use on Admin-Ajax | WordPress.org
    … that let me to this: How to Use Ajax with PHP in WordPress (Step-By-Step Guide)

Then i installed and configured the Heartbeat Control to cover the possibilite of an “internal error”.

  1. But those SSH log’s seems to indicate a DDoS attack, so then there is the thing, i’m a Cloudflare pro customer and i configured a heavy firewall from all Cloudflare recommendations from this two topics:

a) https://support.cloudflare.com/hc/en-us/articles/228325187-Hardening-WordPress-Security

b) Page Rules

… and i tryed to harden the security even more configuring WAF rule not to igonre wp-admin in Package: Cloudflare Rule Set WP0003: Imgur: The magic of the Internet

And i too have a zone lockdown for wp-admin and wp-login.php properly configrued…

So, if this is an attack, is passing through Cloudflare… and NOT JUST THAT, i have Premium Wordfence too… If this is trully an attack, then Cloudflare is being just for nothing (which i find hard to believe).

So, anyone ever experienced any similar problem?

Thank’s for the attention!

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