Web Gateway 7.1.5 Product Guide - McAfee

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6 Web filtering SSL scanning Content Inspection This nested rule set completes the handling of a CERTVERIFY call. It lets some requests skip content inspection according to particular criteria and enables inspection for all others. Nested library rule set — Content Inspection Criteria — Command.Name equals “CERTVERIFY” Cycle — Requests (and IM) The rule criteria specifies that the rule set applies if a request is received on the appliance that contains the CERTVERIFY command, which is sent to request the verification of a certificate. The rule set contains the following rules: Skip content inspection for hosts found in SSL Inspection Whitelist Connection.SSL.Transparent equals false AND URL.Host matches in list SSL Inspection Whitelist –> Stop Rule Set The rule lets requests sent to whitelisted hosts skip content inspection. It applies only in non-transparent mode. Skip content inspection for CN found in SSL Inspection Whitelist Connection.SSL.Transparent equals true AND Certificate.SSL.CN matches in list SSL Inspection Whitelist –> Stop Rule Set The rule lets requests with whitelisted common names in their certificates skip content inspection. It applies only in transparent mode. Note: This rule is not enabled by default. Do not inspect connections with client certificates Connection.Client.CertificateIsRequested equals true –> Stop Rule Set The rule lets requests skip inspection if they require the use of client certificates. Note: This rule is not enabled by default. Enable content inspection Always –> Continue — Enable SSL Scanner The rule enables content inspection. The event settings specify that the SSL scanning module runs in inspection mode. If any of the rules for skipping content inspection applies, processing of the rule set stops and this last rule, which enables the inspection, is not processed. Otherwise, content inspection is enabled by this rule. 220 McAfee Web Gateway 7.1.5 Product Guide
Web filtering SSL scanning 6 Verify Common Name (transparent setup) This nested rule set verifies the common name in a certificate. It applies only to requests sent in transparent mode. Nested library rule set — Verify Common Name (transparent setup) Criteria — Connection.SSL.TransparentCNHandling equals true AND Command.Name does not equal “CONNECT” AND Command.Name does not equal “CERTVERIFY” Cycle — Requests (and IM) The rule criteria specifies that the rule set applies if a request is received through a connection used in SSL-secured communication and verification of the common name is performed in transparent mode. The rules of the rule set check the same criteria to verify a common name as those of the Verify Common Name rule set for the non-transparent mode. However, in the latter mode, the host name to be checked is taken from the CONNECT request, which is not sent under the transparent mode. In this mode, the host name is taken from the request that is sent. For more information, see Verify Common Name (proxy setup). Lists for SSL scanning This section describes some sample lists for SSL scanning. The lists are used by the rules of the library SSL Scanner rule set. Note: When you import this rule set, the lists are also imported. You can find them on the Lists tab of the Policy top-level menu, which displays lists sorted by their types and names. For general information on how to maintain lists, see List maintenance. Allowed CONNECT Ports List of ports that are allowed CONNECT ports on destination servers Type — Number Initial entry — 443 – Default HTTPS port The following table describes the list entries. Table 6-17 Allowed CONNECT Ports list Option Definition Number Number of a port that is an allowed CONNECT port on a destination server Comment Plain-text comment on the port Certificate White List List of certificates that are not verified by the SSL scanning module Type — Host and Certificate The list is initially empty. The following table describes the list entries. Table 6-18 Certificate White List Option Definition Certificate Name of a whitelisted certificate Host Host that the certificate proves to be trustworthy (in regular expression format) Comment Plain-text comment on the certificate McAfee Web Gateway 7.1.5 Product Guide 221
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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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Administrator accounts Authenticati
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Page 169 and 170: 6 Web filtering Contents Filtering
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Page 215 and 216: Global whitelists Web filtering Glo
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Page 235 and 236: Web filtering Supporting functions
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Page 269 and 270: 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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