By default PHP on WHM/Cpanel is loaded as DSO (Dynamic Shared Object) module and is run by the user “nobody” by default. Though this method of loading the PHP module is normally the fastest way to serve PHP request, running it as using user “nobody” will be a real pain in the ass if you are serving multiple sites run by multiple users, you will be for sure run into file permission problems.

This is where the SuExec comes in play, every executed PHP scripts will be executed by the user who owns the VirtualHost that is server the request, this method has a lot of drawbacks too on both speed and security.

Anyway, if you still want to enable it then read on below.

1. Login to your Web Host Manager as root account then under the Service Configuration menu, look for the “Configure PHP and SuExec” and click on it.

2. On the “Configure PHP and SuExec” page, under “alter configuration” section, look for the PHP handlers and then change its values to “cgi” and then set the Apache SuExec to On. (by default the value is on)

3. Finally, click on “Save new configuration” button and wait til the Apache server restarted and your done.

To verify that SuExec is working as intended, try to upload a file or create a folder using an upload file script on PHP.

That’s all about it.