Web Gateway 7.1.5 Product Guide - McAfee

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Introduction
Chapters of this guide
Modifying the filtering process
You can modify the filtering process by working with the rules and rule sets that control it, as well as
with the filter lists and the settings of the modules involved in this process. This includes:
• Modifying filtering rules and rule sets — You can modify blocking, whitelisting, and other rules
and group them in rule sets as is appropriate for your network.
• Maintaining filter lists — You can add new items to blocking lists and whitelists, as they emerge,
and remove others that do not need special attention anymore.
• Configuring module settings — You can configure settings to determine the way the modules on
the appliance do their jobs, for example, use particular methods for detecting malware.
The chapters of this guide provide information on all these activities. They explain general concepts,
give step-by-step descriptions of key procedures, and inform you about the details of individual rules,
lists, and module settings.
Chapters of this guide
The chapters of this guide deal with the main functions of the appliance and related subject matter in
the following ways:
• About the McAfee Web Gateway appliance — Introduces the appliance and provides overviews
of main functions, administrator activities, deployment options, and system architecture
• Setup and Logon — Explains how you setup the appliance and complete first steps up to the point
where you configure proxy, authentication, and filtering functions
This includes information on the installation and the initial configuration of system parameters.
The chapter goes on to explain how you log on to the appliance and implement an initial system of
filtering rules. An overview of the user interface is also provided.
• Proxies and Caching — Explains how you configure the gateway functions of the appliance to let it
run in explicit proxy or transparent mode, using different network protocols
This enables the appliance to intercept web traffic and apply authentication and other filtering
functions to it. Use of the web cache is also explained.
• Rules and Rule Sets — The authentication and filtering functions that give you control over who
accesses the web from within your network and what web objects can be accessed, depend on the
implemented web security rules.
This chapter explains in general how these rules work. It provides information on the rule sets that
contain them and the filtering process that they contribute to. It tells you how to modify and
create rules and rule sets and how to maintain and configure the lists and modules that the rules
rely on.
• Authentication and Account Management — Explains how you configure rules, lists, and modules
for the authentication functions of the appliance
The options for setting up accounts and privileges for administrators are also explained.
• Web Filtering— Explains how you configure rules, lists, and modules for filtering web objects on the
appliance
The filtering process uses main functions, such as virus and malware or URL filtering, and
supporting functions like counting user requests or progress indication for downloads. Messages to
users that inform them about filtering activities of the appliance are also explained.
18 McAfee Web Gateway 7.1.5 Product Guide