Where do the certificates come from that you're using? Don't you need to register an SSL certificate in order to use HTTPS?

@ kioarthurdane: That's not very descriptive, if you need help, you probably need to explain yourself a little more?!

@ steresi: As the article states, the certificates are created using the linked guide.

You can create "self-signed" certificates. I think Apache might ship with the utility to do this.

The resulting https: encryption is just as strong as if you bought a commercial certificate but for the fact that no one will recognize you as a SSL certificate provider which will cause most modern browsers to throw a certificate warning message which might cause a person to not browse your site.