Domain Name System (DNS) Infrastructure Support

Topic Last Modified: 2011-01-27

Microsoft Lync Server 2010 communications software requires Domain Name System (DNS) and uses it in the following ways:

To discover internal servers or pools for server-to-server communications.
To allow clients to discover the Front End pool or Standard Edition server used for various SIP transactions.
To associate the simple URLs for conferences with the servers hosting those conferences.
To allow external servers and clients to connect to Edge Servers or the HTTP reverse proxy for instant messaging (IM) or conferencing.
To allow unified communications (UC) devices that are not logged in to discover the Front End pool or Standard Edition server running Device Update Web service, obtain updates, and send logs.
For DNS load balancing.

Note:
Lync Server 2010 does not support internationalized domain names (IDNs).