Certificate Requirements for Group Chat Server
Topic Last Modified: 2010-11-02
To install Lync Server 2010, Group Chat, you must have a certificate issued by the same CA as the one used by Lync Server 2010 internal servers for each server running Lookup service, Channel service, and Web service. Make sure that you have the required certificate(s) before you start the Group Chat installation, especially if you are using an external CA. For details, see Obtaining Certificates for Group Chat Server in Deploying Group Chat Server documentation.