If you are using cPanel/WHM please make sure to open/allow the 60418 port on TCP on your server and on the firewall in front of it (if there is one). It is required for the CaptchaHTTPS service.

This header needs to be set up in your web server used to serve your domains.

Please insert your server’s IP addresses in the place of “INSERT YOUR IP ADDRESS(ES) HERE“.

What web server do you use?

I use Apache

Go to:

  1. Home
  2. Service Configuration
  3. Apache Configuration
  4. Include Editor
  5. Pre Main Include ( Here choose All version )
  6. Please enter the following text into the text field
<IfModule remoteip_module>
    RemoteIPHeader X-Forwarded-For
    RemoteIPInternalProxy INSERT YOUR IP ADDRESS(ES) HERE
</IfModule>
  1. Set the LogFormat (combined) under "Global Configurations" to
    %a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"
  2. Then save the changes and restart Apache

I use LiteSpeed

Please go to the LiteSpeed Configuration menu and select the Server and select General. In General / Settings menu you can see Use Client IP in Header.
Here select Trusted IP Only.

You can add the IP address(es) of your server under General tab under Security at Access Control at the Allowed list.
You just need to add your server's IP addresses separated with space.
You can check out the syntax here: https://www.litespeedtech.com/docs/webserver/config/security#accessControl_allow

Change the Logformat setting under the General tab/ Log tab to look like this:

%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined

After this is done save the changes and restart Litespeed.

I Use Nginx

  1. Open the Engintron plugin in WHM (if you are not using any ControlPanel, skip to step 2)
  2. Click on the Edit nginx.conf
  3. Insert the following codes before the real_ip_header X-Forwarded-For line:
real_ip_header    X-Forwarded-For;
real_ip_recursive on;
Eg trusted ips:
set_real_ip_from 192.168.0.0/16;
set_real_ip_from 127.0.0.0/8;
set_real_ip_from <INSERT YOUR IP ADDRESS(ES) HERE>;
  1. Please also check the logformat in the file if it looks like this:
%a %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
  1. After this Save the changes and restart Nginx

Enable the WAF module

You can enable the module from the Dashboard/ Servers by clicking on the cogwheel next to the server's name. You just need to click on the switch icon next to the WAF 2.0 module.