See Also
Obtain public key infrastructure (PKI) certificates for the new
servers and for the reverse proxy and new Edge Server roles. You
need certificates for each computer running Office Communications
Server 2007 R2. Certificates can be issued from an internal
certification authority (CA) or you can obtain the required
certificates from a publicly trusted certification authority. You
need Subject Alternate Name (SAN) certificates for some server
roles and network interfaces. If you are planning on a single edge
version after you transfer your users to Office Communications
Server 2007 R2, you may be able to reuse your existing Access Proxy
certificates. For details about certificates, see
If you intend to allow users who are homed on the Office
Communications Server 2007 R2 Enterprise pool to have external or
remote access, you need to prepare a complete set of security
certificates to support Office Communications Server 2007 R2, Edge
Server. For details, see