Sun Java System Web Server 7.0 Update 4 Administrator's Guide

Hardware and Software Requirements

The use case described in this section, consists of the following entities:

1) Four instances (running on four identical nodes) 

2) An Administration Server 

3) A reverse proxy for load balancing HTTP requests 

To set up a cluster, you need two or more identical nodes with the same operating system version and patches. For example, if you select a machine with Solaris® 9 SPARC® operating system, other machines in the cluster must also have Solaris 9 SPARC installed.

For information on supported platforms and patch requirements, see the Sun Java System Web Server 7.0 Update 4 Release Notes.

The following figure describes a clustered environment.

Figure 4–2 Cluster Set Up

Figure representing the cluster set up.

In the preceding figure, nodes are configured in the De-Militarized Zone (DMZ). The Administration Server is configured behind a firewall, the Militarized Zone, to restrict and protect the Administration Server against general access. Another node is configured as the Reverse Proxy Server. A reverse proxy server resides inside the DMZ to enhance security.

Note –

The Solaris zone feature is supported only on Solaris 10 operating system.