I manage a series of domains for a car dealer. Each website is like (but not limited to) this: acura.cardealer.com honda.cardealer.com chevy.cardealer.com and so forth. I have each of these domains created in Plesk as individually hosted websites. Now they want to start doing some online commerce which will require some secure certificates. Rather than buy individual certificates for each cardealer.com site, I thought it would be more efficient (and cheaper) to purchase a wildcard certificate for cardealer.com . Here's my questions: How do I create the CSR (Certificate Signing Request) with Plesk? What domain do I enter (cardealer.com or *.cardealer.com) in the request? Or must I use the command line to generate the CSR? Secondly, how do I install the certificate once I receive it from the CA (Certificate Authority)? Is this process any different from "normal?" Lastly, what IP address scheme do I use? Do I allocate a single, unique IP address for cardealer.com and then multi-home it for all the cardealer domains or do I have to reserve an IP for each xxx.cardealer.com domain that I host? Thanks for any guidance that you may offer.