Web Gateway 7.1.5 Product Guide - McAfee

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6 Web filtering HTML filtering ActiveX Controls This nested rule set removes ActiveX controls embedded in HTML pages. It is processed in the embedded object cycle when these objects are sent with requests or responses. Note: This rule set is not enabled by default. Nested library rule set — ActiveX Controls Criteria — Always Cycle — Embedded objects The rule set contains several rules and the nested Filter ActiveX in Scripts rule set. Advertising Filter The nested Advertising Filter library rule set removes advertising elements embedded in HTML pages, such as images, layers, forms, and others. It is processed in the embedded object cycle when these objects are sent with requests or responses. Note: This rule set is not enabled by default. Nested library rule set — Advertising Filter Criteria — Always Cycle — Embedded objects The rule set contains a rule and the following nested rule sets: • Link Filter • Dimension Filter • Popup Filter • Script Filter Sample lists for HTML filtering You can maintain lists for use by HTML filtering rules. This section describes some sample lists that are used by the rules in the HTML Filtering library rule set. When you import this rule set, these lists are implemented. You can find them on the Lists tab of the Policy top-level menu, sorted by their types and names. For general information on how to maintain lists, see List maintenance. Media Type Whitelist List of media types embedded in HTML pages you want to keep Type — String The list is initially empty. The following table describes the list entries. Table 6-12 Media Type Blocklist Option Definition Media type Media type that is kept during HTML filtering Comment Plain-text comment on the media type 212 McAfee Web Gateway 7.1.5 Product Guide
Media Type String Blocklist List of media types embedded in HTML pages you want to remove Type — String The list is initially empty. The following table describes the list entries. Table 6-13 Media Type String Blocklist Option Definition Media type Media type that is removed by HTML filtering Comment Plain-text comment on a media type Module for opening objects embedded in HTML pages Web filtering HTML filtering 6 A rule in an HTML filtering rule set can call an opener module to open objects embedded in HTML pages to make them accessible for filtering. This section explains how to configure settings for this module. Configure the HTML opener You can configure settings for the module that opens objects embedded in HTML pages. 1 Go to Policy | Settings. 2 On the Engines branch of the settings tree, go to Enable.HTMLOpener and select the settings you want to configure, for example, HTML Filtering. 3 Configure these settings as needed. 4 Click Save Changes. For more information on these settings, see HTML Opener engine settings. HTML Opener engine settings You can configure the HMTL Opener engine settings. These are settings for the module that opens objects embeded in HTML pages to make them accessible for filtering. Note: These settings can be configured on the Settings tab of the Policy top-level menu. HTML Opener Configuration Settings for the HMTL opener (HTML Opener list) — List of objects embedded in an HTML page that the module should open The following table describes the list entries. For information on maintaining a list of this type, see Inline lists. Table 6-14 HTML Opener list Option Definition Node name Type of an object that the HTML opener should open. Only open start tags When selected, the HTML opener opens only starts tags, which contain the attributes that are checked by the rules. Comment Plain-text comment on the element Only open elements that refer to external sources — When selected, the HTML opener opens only these elements, for example, when pictures are transmitted from an external server You can select this option if you think that HTML pages stored on the local server can be trusted and need not have elements removed. McAfee Web Gateway 7.1.5 Product Guide 213
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Product Guide McAfee ® version 7.1
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Contents Preface 9 About this guide
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Contents Standard authentication .
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Contents Create an error handler .
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Preface About this guide This Produ
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Table i-2 Acronyms (continued) Acro
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1 Introduction Contents Comprehensi
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Deployment of the McAfee Web Gatewa
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Operating system Introduction Filte
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Introduction Chapters of this guide
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2 Setup and logon Contents Setting
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Setup and logon Setting up the McAf
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Installing the appliance software S
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2 Review the summary that is displa
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Import a license Setup and logon Lo
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Main elements of the user interface
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Setting up system management tools
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Setup and logon Setting up system m
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3 Proxies and caching Contents Inte
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Explicit proxy mode Proxies and cac
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Table 3-1 WCCP Services list (conti
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Proxies and caching Network modes 3
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Transparent bridge mode Proxies and
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Transparent router mode Proxies and
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Common proxy settings Proxies and c
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Proxies and caching Common proxy se
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8 Make sure the following is config
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Proxies and caching Reverse HTTPS p
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Proxies and caching Providing proxy
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Preventing data leaks Proxies and c
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Web caching Proxies and caching Web
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Bypass lists for web caching Proxie
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Verify the enabling of the web cach
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4 Rules and rule sets Contents Filt
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Rules and rule sets Filtering contr
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Modules for delivering filtering in
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Rules on the user interface On the
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Property of a URL Property — URL.
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About rule sets Rules and rule sets
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Rules and rule sets About rule sets
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Table 4-4 Rule set library Rule set
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The Rule Sets toolbar provides the
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Add name, comment, and enabling Com
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Add as many parameters as needed. A
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3 Select Event. The Add Event windo
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Adding the action 9 Select Action.
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Rules and rule sets Rule configurat
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Add a new rule set You can also cre
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List maintenance Rules and rule set
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Add a list Complete the following p
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Action and engine settings Rules an
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Access restrictions Rules and rule
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5 Filtering users Authentication an
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Authentication and access managemen
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Module for authenticating users Aut
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LDAP Settings specifying the LDAP m
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Novell eDirectory Settings specifyi
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Kerberos Settings specifying the Ke
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Table 5-8 Certificate Authorities l
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Page 215 and 216: Global whitelists Web filtering Glo
Page 217 and 218: Web filtering SSL scanning 6 Handle
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Page 223 and 224: Modules for SSL scanning Web filter
Page 225 and 226: Web filtering SSL scanning 6 SSL Cl
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Page 235 and 236: Web filtering Supporting functions
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System configuration Central manage
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Scheduled job settings This section
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System configuration Central manage
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8 Monitoring Contents Monitoring th
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Monitoring Dashboard 8 Overview of
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Charts and Tables tab Monitoring Da
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Table 8-4 Overview of charts and ta
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Logging Monitoring Logging 8 Applia
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Sample logging rule Monitoring Logg
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13 Configure the following for the
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Monitoring Logging 8 4 Go to Policy
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+ Number.ToString (Block.ID) + “
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Create a rule for setting text as t
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Monitoring Logging 8 • In the Con
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Configuring log file settings Monit
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Monitoring Logging 8 Auto Pushing S
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Log handler rule sets Monitoring Lo
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Performance measurement Monitoring
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Monitoring Performance measurement
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Transferring data to an ePO server
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Event monitoring with SNMP Monitori
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Error handling Table 8-7 Trap Sinks
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Rule sets for error handling Monito
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The rule set contains the following
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Monitoring Error handling 8 Handle
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Monitoring Error handling 8 Block o
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9 Troubleshooting Contents Troubles
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Enable the creation of connection t
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List of actions Appendix: Configura
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Table A-2 List of error IDs (contin
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Table A-3 List of events (continued
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Table A-3 List of events (continued
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List of incident IDs Appendix: Conf
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Table A-4 List of incident IDs (con
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Table A-5 List of properties (conti
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Wildcard expressions Appendix: Conf
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Table A-6 List of important special
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Table A-7 List of important special
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Index A access restrictions 117 act
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I ICAP server, see proxies ICQ, see
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SNMP monitoring 303 SSL scanning Ce
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700-3299A00
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