Web Gateway 7.1.5 Product Guide - McAfee

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1 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
Introduction Chapters of this guide 1 • System Configuration — Explains how you configure functions of the appliance system, such as domain name services, port forwarding, or static routes Some of these are already configured at the initial setup. Functions for running appliance systems as nodes in a central management configuration are also explained. • Monitoring — Explains how to monitor alerts, web usage, filtering activities, and key system parameters, using the dashboard and several log files, as well as external systems, such as the ePolicy Orchestrator • Troubleshooting — Explains the functions the appliance provides for troubleshooting, such as the use of core files or TCP dumps The chapter also explains how you create a backup of the appliance configuration. McAfee Web Gateway 7.1.5 Product Guide 19
Page 1 and 2: Product Guide McAfee ® version 7.1
Page 3 and 4: Contents Preface 9 About this guide
Page 5 and 6: Contents Standard authentication .
Page 7 and 8: Contents Create an error handler .
Page 9 and 10: Preface About this guide This Produ
Page 11 and 12: Table i-2 Acronyms (continued) Acro
Page 13 and 14: 1 Introduction Contents Comprehensi
Page 15 and 16: Deployment of the McAfee Web Gatewa
Page 17: Operating system Introduction Filte
Page 21 and 22: 2 Setup and logon Contents Setting
Page 23 and 24: Setup and logon Setting up the McAf
Page 25 and 26: Installing the appliance software S
Page 27 and 28: 2 Review the summary that is displa
Page 29 and 30: Import a license Setup and logon Lo
Page 31 and 32: Main elements of the user interface
Page 33 and 34: Setting up system management tools
Page 35 and 36: Setup and logon Setting up system m
Page 37 and 38: 3 Proxies and caching Contents Inte
Page 39 and 40: Explicit proxy mode Proxies and cac
Page 41 and 42: Table 3-1 WCCP Services list (conti
Page 43 and 44: Proxies and caching Network modes 3
Page 45 and 46: Transparent bridge mode Proxies and
Page 49 and 50: Transparent router mode Proxies and
Page 53 and 54: Common proxy settings Proxies and c
Page 55 and 56: Proxies and caching Common proxy se
Page 61 and 62: 8 Make sure the following is config
Page 63 and 64: Proxies and caching Reverse HTTPS p
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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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Administrator accounts Authenticati
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6 Web filtering Contents Filtering
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Virus and malware filtering Web fil
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Web filtering Virus and malware fil
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Whitelists for virus and malware fi
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Module for virus and malware filter
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URL filtering Web filtering URL fil
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Web filtering URL filtering 6 The B
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Modify a filtering rule to block un
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Web filtering URL filtering 6 Add a
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Module for URL filtering Web filter
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Web filtering URL filtering 6 Advan
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Different versions of URL category
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Web filtering Media type filtering
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Web filtering Media type filtering
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Lists for media type filtering Web
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HTML filtering Web filtering HTML f
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Web filtering HTML filtering 6 Embe
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Break; User-Defined.removeOneScript
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Media Type String Blocklist List of
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Global whitelists Web filtering Glo
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Web filtering SSL scanning 6 Handle
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Block untrusted certificate authori
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Web filtering SSL scanning 6 Verify
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Modules for SSL scanning Web filter
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Web filtering SSL scanning 6 SSL Cl
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8 Click OK. The window closes and t
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The rule set contains the following
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Bandwidth throttling Web filtering
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Next-hop proxies Web filtering Supp
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Web filtering Supporting functions
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User messages Web filtering User me
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The following table describes the o
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Table 6-25 Template Editor (continu
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Web filtering User messages 6 Redir
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7 System configuration Contents Con
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System settings System configuratio
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Table 7-4 List of sections on syste
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License system settings System conf
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Network Protection system settings
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System configuration System setting
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Database updates Table 7-13 File Ed
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System configuration Database updat
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Configure central management settin
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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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