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Setting Up a Wildcard SSL on cPanel/WHM A WildCard SSL basically allows you to use unlimited sub-domains on a given domain name with one SSL certificate. The purpose of the Wildcard SSL certificate is to secure your main domain and sub domain over a single FQDN. Installing a Wildcard SSL Certificate onto cPanel is not much different than installing a standard SSL. A wildcard certificate means all of your sub-domains will resolve to the same location, regardless of the non-SSL Document-Root specification. A user will need to purchase a wildcard SSL from a vendor or a reseller that supplies them. Similar to having multiple certificates installed on a server, each sub-domain containing the certificate needs its own IP as well. Wildcard SSL’s do not work like Wildcard DNS – you will have to specifically install the certificate on each sub-domain. Following are two methods to set up a Wildcard SSL for a domain. Multiple Accounts In a case where you have each sub-domain hosted as a separate cPanel account, and each cPanel account has its own IP address, then follow these steps:
Generate the Certificate Signing Request (CSR) in WHM, using *.domain.com There are two ways to change a site’s IP address: i. Via WHM: Go to WHM > Change site’s IP Address, select the account, then select the IP ii. Via Command Line: /usr/local/cpanel/bin/setsiteip -u $user $ip