Web Gateway 7.1.5 Product Guide - McAfee

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4 Rules and rule sets About rule elements Action — Continue Settings — None Impact — Lets processing continue with the next rule after the rule that triggered this action. This action does not affect a user and accordingly no settings are needed for a user message. For a list of the available actions, see the List of actions in the appendix. Events If the criteria of a rule matches, an event or several of them can optionally be triggered. For example, if an object is found to be virus-infected and blocked, an event can be triggered that writes an entry for the blocking action into a log file. The way an event is executed can be configured through parameters and settings. For example, the text of a log file entry can be specified as an event parameter and rotation of the log files as part of the event settings. Other activities executed by events are, for example: • Setting a value • Adding a request header • Incrementing a counter For a list of the available events, see the List of events in the appendix. 90 McAfee Web Gateway 7.1.5 Product Guide
About rule sets Rules and rule sets About rule sets 4 Web security rules are grouped and contained in rule sets on the appliance. This section provides some general information about these rule sets and the rule set systems they are included in. After the initial setup, a system of rule sets is implemented on the appliance. If you use the policy creation wizard, this system will match your selections. Rules, rule sets and filter lists are then implemented according to the type of your organization, your region, and the strictness you want to impose on the users of your network. If you choose not to make such selections, the default rule set system is implemented. In both cases, you can review and modify what has been implemented. You can modify rule sets and individual rules, including the filter lists, the settings of the modules used in the filtering process, and the settings of the actions that are triggered when rules apply. You can edit or delete all these items, move rules and rule sets to different positions, copy rules to insert them into other rule sets, and create new items of all types. You can also import rule sets from the internal library, move them to other positions, and modify them. Rules in rule sets A rule cannot stand on its own, it must be included in a rule set. A rule set can include just a single rule or several of them or one or more nested rule sets. If it includes nested rule sets, it can, but need not include individual rules on the same level as the nested rule sets. Rule sets usually include rules that work together to provide a particular function for ensuring web security. For example, a virus and malware filtering rule set might include a rule that blocks infected rule sets and one or several others that whitelist objects to let them skip the blocking rule and ensure users can access them. Another rule set might filter URLs and include rules for blocking individual URLs and URL categories, as well as whitelisting rules. You can modify the implemented system and group rules in rule sets to build functional units in whatever way is suitable for your network. Rule set cycles Rule sets are processed, with their rules, in the three cycles of the filtering process. A rule set can be processed in any combinations of these cycles, for example, only in the request cycle, in the response and embedded objects cycle, and also in all three cycles. The cycles of a rule set are at the same time those of the individual rules contained in it. A rule cannot differ with regard to cycles from its rule set. Rule set criteria Like rules, rule sets have criteria and are applied if these match. A rule set has criteria in addition to the criteria of its individual rules and usually these criteria differ from each other. For a rule to apply, both its own criteria and the criteria of its rule set must match. Rule set library The rule set library provides rule sets for you to import into your implemented rule set system. You can do this to add a function that is missing in your system or when the implemented rule sets do not suit your network in all respects. McAfee Web Gateway 7.1.5 Product Guide 91
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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
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
Page 71 and 72: Proxies and caching Providing proxy
Page 73 and 74: Preventing data leaks Proxies and c
Page 75 and 76: Web caching Proxies and caching Web
Page 77 and 78: Bypass lists for web caching Proxie
Page 79 and 80: Verify the enabling of the web cach
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Page 89: Property of a URL Property — URL.
Page 93 and 94: Rules and rule sets About rule sets
Page 95 and 96: Table 4-4 Rule set library Rule set
Page 97 and 98: The Rule Sets toolbar provides the
Page 99 and 100: Add name, comment, and enabling Com
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Page 105 and 106: Adding the action 9 Select Action.
Page 107 and 108: Rules and rule sets Rule configurat
Page 109 and 110: Add a new rule set You can also cre
Page 111 and 112: List maintenance Rules and rule set
Page 113 and 114: Add a list Complete the following p
Page 115 and 116: Action and engine settings Rules an
Page 117 and 118: Access restrictions Rules and rule
Page 119 and 120: 5 Filtering users Authentication an
Page 121 and 122: Authentication and access managemen
Page 127 and 128: Module for authenticating users Aut
Page 131 and 132: LDAP Settings specifying the LDAP m
Page 133 and 134: Novell eDirectory Settings specifyi
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Authentication and access managemen
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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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