Installation guide

Sun Java System Web Proxy Server  11
Chapter 1: Introduction
 Websense Enterprise Explorer: This reporting tool is available free of
charge with your Websense Enterprise or Web Security Suite
subscription. Explorer is a web-based reporting application that provides
a customizable view into the Log Database. It displays summary
information, as well as specific detail about users’ internet activity. For
installation procedures, see the Reporting Installation Guide for
Websense Enterprise and Web Security Suite.
 Websense Enterprise Explorer for Unix: This reporting tool is available
free of charge with your Websense Enterprise or Web Security Suite
subscription. It is provided in a separate installer from the rest of the
Websense Enterprise and Web Security Suite components. Explorer for
Unix is a web-based reporting application that provides the same
functionality as Websense Enterprise Explorer, but for Solaris and Linux
operating systems. For installation procedures, see the Explorer for Unix
Administrator’s Guide for Websense Enterprise and Web Security Suite.
How Websense Filtering Works
The Websense Filtering Service is the engine by which internet content
filtering is enforced. With its flexible, policy-based filtering approach,
Websense software allows you to apply different filtering policies to different
clients (users, groups, domains/organizational units, workstations, or
networks).
When Sun Java System Web Proxy Server receives an internet request from a
client, it queries the Websense Filtering Service to find out whether the
requested site should be blocked or not. To make this determination, Filtering
Service consults the policy assigned to the client. Each policy delineates
specific time periods during the week and lists the category sets that are in effect
during those time periods. After it determines which categories are blocked,
Filtering Service consults its comprehensive database of internet addresses
(URLs). If the site is assigned to a blocked category, the user receives a block
page instead of the requested site. If the site is assigned to a permitted category,
Filtering Service notifies the Sun Java System Web Proxy Server that the site is
not blocked, and the site is returned to the user.
Websense Enterprise and Web Security Suite filter network applications that
use TCP-based protocols and measure bandwidth usage of UDP-based
messages as well. If an initial internet request is made with TCP, and the
request is blocked by the Websense software, all subsequent UDP traffic will