/usr/local/cpanel/scripts/easyapache in the terminal when you are logged in as root.
We recommend that you update to the most current version of your cPanel/WHM build before changing your EasyApache profile. WHM will perform a quick check to see if you are running the most current version. If you are not running the latest update, you will be prompted to update the cPanel/WHM. To update the software:
scripts/upcp Copyright © cPanel 2000–2011.