Remote Procedure Calls in a Perimeter Network
Topic Last Modified: 2005-05-24
If you decide to situate your Exchange front-end servers in a perimeter network, be aware that remote procedure calls (RPCs) are used to access Active Directory.
|It is recommended that you use an advanced firewall server (such as ISA Server) instead of the front-end server in the perimeter network. For more information, see Advanced Firewall in a Perimeter Network.|
Remote Procedure Calls are used by Internet Information Services (IIS) to authenticate clients on the front-end server.