Provisioning certificates for Edge Servers was another sore subject in prior versions of Lync Server. This has been greatly simplified by the new certificate wizard, which automatically populates the required names and attributes based on the published topology. This section discusses the certificate requirements and considerations for organizations deciding between public certificates and privately issued certificates.
An Edge Server requires certificates for four different services:
• Internal Edge Service
• Access Edge Service
• Web Conferencing Edge Service
• A/V Edge Authentication Service
A common misconception is that all of these certificates should be purchased from a public certificate authority, which is only partly true. ...