Secure Global Desktop Administration Guide > Security > What are peer DNS names and external DNS names?

What are peer DNS names and external DNS names?

Each computer on the network may have a number of DNS names. For example, the web server www.indigo-insurance.com may also be known as boston.indigo-insurance.com.

In a network containing a firewall, you can ensure that some names are usable outside the firewall, for example across the Internet, and others are usable inside the firewall. For example, users outside the firewall might be able to use www.indigo-insurance.com, but not boston.indigo-insurance.com. Users inside the firewall might be able to use either name.

The Secure Global Desktop three-tier architecture can straddle firewalls, allowing access from client devices across the Internet.

• An external DNS name is the DNS name that the client devices use. For example, www.indigo-insurance.com.
• A peer DNS name is the DNS name that the Secure Global Desktop servers in the array use to identify themselves and each other. For example, boston.indigo-insurance.com.

These two DNS names may be associated with the same network card (NIC) on the Secure Global Desktop host, or they may each use a different network card.

Copyright © 1997-2005 Sun Microsystems, Inc. All rights reserved.