I tried looking at AWS guides, and other things but can't seem to figure this one out. When using ELB there is a backend authentication option. I want to enable it, but I am not sure what certificate to use. We currently have a key from GoDaddy with a certificate chain added on. The cert is working with the ELB no issues, but backend is current disabled. It is asking for a backend certificate. Which file do I use for this? The GoDaddy cert?