How to configure certs for my portal which uses WCF services?

The portal server need:

1. client authentication cert: needed for the portal to resolve the web reference of WCF service, to send request to the web service server, to setup SSL channel.

2. server authentication cert: needed for the portal to setup SSL channel (encryption) with the web service server.

Note, server authentication cert is not used for client authentication. In other words, in the web service's web.config, section should use portal server's client authentication cert. In the portal's web.config, section should also use portal server's client authentication cert.

Note: both client auth cert and server auth cert are required for SSL channel setup.