Introduction
This article covers generating a wildcard CSR that will cover a domain and all of its subdomains.
Procedure
1) Log into cPanel or WHM and navigate to the following location.
cPanel:
Home > Security > SSL/TLS > Generate, view, or delete SSL certificate signing requests
WHM:
Home > SSL/TLS > Generate an SSL Certificate and Signing Request
2) In the "Domains" section, add the following lines, replacing example.com with your domain.
*.example.com
example.com
3) Fill out all other required fields appropriately and click the Generate/Create button.
Once done, the resulting CSR can be provided to a Certificate Authority. After they have issued the SSL, it can be installed in the following locations of cPanel and WHM.
cPanel:
Home > Security > SSL/TLS > Manage SSL sites
WHM:
Home > SSL/TLS > Install an SSL Certificate on a Domain