Once your VPS is ready and the WHM/cPanel is installed, you need to enable ionCube Loader. To enable ionCube Loader you need to log in to your WHM as root and navigate to Server Configuration > Tweak Settings > PHP. Check ionCube as cPanel PHP loader and click on the Save button. That’s it.
Now you are ready to install Softaculous auto installer on your VPS.
Log in to your VPS via SSH and execute the following commands one by one:
wget -N http://files.softaculous.com/install.sh
chmod 755 install.sh
After the installation is completed, Softaculous will become enabled in your WHM. Log in to your WHM and navigate to Plugins > Softaculous – Instant Installs. As you can see, Softaculous is enabled and can be used by your cPanel clients. They can log in to their cPanel accounts and use the one-click installer to install their favorite applications.