Login to WHM > ModSecurity™ Vendors and under “OWASP ModSecurity Core Rule Set V3.0” click on the “+ install” link and to add a third-party rule set click on “Add Vendor” button.
To install Comodo WAF rules:
https://waf.comodo.com/doc/meta_comodo_apache.yamlClick”Load” and you will see some info auto-filled, scroll down and click on the “Save” button.
That’s it, you now have Comodo WAF rules enabled on your WHM server.
![Screen Shot 2020 06 23 at 09.57.51 - WARNING: [pool user_USERNAME] server reached pm.max_children setting (25), consider raising it](https://i0.wp.com/administrator.pejcic.rs/wp-content/uploads/2026/09/Screen-Shot-2020-06-23-at-09.57.51.png?resize=344%2C194&ssl=1 "WARNING: [pool user_USERNAME] server reached pm.max_children setting (25), consider raising it")
![2023 08 28 12 15 - node[175421]: pthread_create: Resource temporarily unavailable](https://i0.wp.com/administrator.pejcic.rs/wp-content/uploads/2023/08/2023-08-28_12-15.png?resize=344%2C194&ssl=1 "node[175421]: pthread_create: Resource temporarily unavailable")