How to resolve "Using both mod_userdir and mod_ruid2 is not a supported configuration."

Symptom

When enabling mod_userdir protection in WHM's Apache mod_userdir Tweak tool, the following is shown:

CPANEL_ERROR: Detected mod_ruid2 in use.
Using both mod_userdir and mod_ruid2 is not a supported configuration.
Changes were not saved.

Cause

The mod_ruid2 with mod_userdir Apache modules are not compatible with each other, however, both are currently installed.

Answer

For similar protections that mod_ruid2 provides, you will want to disable mod_ruid2 and enable mod_suexec in its place. This module is compatible with the Apache mod_userdir Tweak tool and the features it provides.

1. Navigate to Home / Software / EasyApache 4 in WHM as the root user
2. Click the Customize option to select available packages.
3. Navigate to Apache Modules and disable mod_ruid2.
4. Search for mod_suexec and enable it.
5. Select "Review" on the left-hand side and provision the new Apache modules.

Additional Information

mod_ruid2 vs mod_suexec