These CA Root Certificates are downloaded from their respective websites,
however there is no guarantee that these are the correct values for your certificate.

The purpose of these files is to provie a generic default for apache so the SSLCACertificateFile value isn't blank.
When you purchase an a SSL Certificate, plase install the CA Root Bundle that comes with the certificate (or from the issuer's website)

To install the general server.ca (which contains all .ca files), type: