You can add a wildcard " * " character in the subject name or common name fields in the public key certificate so that you can define a single common name for multiple domain names. For example, a certificate with "*.bedford.progress.com " common name can be used for user1.bedford.progress.com, user2.bedford.progress.com, or user3.bedford.progress.com.

By default, the client matches the hostname with a wildcard common name using the regEx matching technique. For example, *.progress.com is a valid wildcard common name for user.bedford.progress.com. If you want to validate the hostname as per the RFC 6125 guidelines, set the following environment variable to true: