1. Log into WHM as the root user.
2. Click Edit DNS Zone, under “DNS Functions” on the left-side menu.
3. Choose the zone you want to add a wildcard to, and click edit.
4. Then scroll down until you see “Add New Entries Below this Line”.
5. Put a * in the first box.
6. Select A from the drop down.
7. Next put the IP in the box that is on the right of the “A” dropdown.
8. Click Save.