Web Gateway 7.1.5 Product Guide - McAfee

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3 Proxies and caching Reverse HTTPS proxy configuration Create rules for setting the URL.Host property To create rules that set the URL.Host property to the appropriate value for the IP addresses the appliance listens to, proceed as follows: 1 Go to Policy | Rule Sets. 2 On the rule sets tree, select the rule set you have created for the new rules, for example, Set URL.Host property according to particular IP addresses. 3 Click Add Rule. The Add Rule window opens. 4 Under Name, enter a name for the new rule, for example, Set URL.Host property for IP address 10.141.101.51. 5 Under Rule Criteria, select If the following criteria is matched and click Add. The Add Criteria window opens. 6 Configure the rule criteria as follows: • From the Property list, select URL.Destination.IP. • From the Operator list, select equals. • In the Value field under Parameter, type the IP address you want to match to a host name, for example, 10.141.101.51l. 7 Click OK. The window closes and the new criteria appears under Rule Criteria. 8 Under Action, select Continue and leave the default settings for this action. 9 Under Events, click Add and then Set Property Value. The Add Set Property window opens. 10 Set a property as follows: • Under Set this property, select URL.Host. • Under To concatenation of these strings, click Add. The Please enter a string window opens. • In the Value field, type the host name you want the IP address to match. 11 Click OK. The window closes and the new event appears under Events. 12 Click Finish. The Add Rule window closes and the new rule is inserted in the rule set you configured for it. 13 [Optional] Repeat Steps 3 to 12 for every other rule you want to add. 14 Click Save Changes. 64 McAfee Web Gateway 7.1.5 Product Guide
Proxies and caching Reverse HTTPS proxy configuration 3 Optional settings for a reverse HTTPS proxy configuration In addition to configuring the network setup and the SSL certificate handling, you can complete some optional activities to ensure the smooth operation of a reverse HTTPS proxy configuration: • Deactivate proxy loop detection • Restrict access to appliance ports • Restrict access to web servers • Address multiple web servers Deactivate proxy loop detection The appliance can detect proxy loops by evaluating the Via header of a client request. It is recommended that you deactivate this detection process in a reverse HTTPS proxy configuration. 1 Go to Configuration | Appliances. 2 On the appliances tree, go to the appliance you want to deactivate proxy loop detection for and select Proxies (HTTP(S), FTP, ICAP, and IM). 3 In the Advanced Settings section, deselect HTTP(S): Inspect Via header to detect proxy loops. 4 Click Save Changes. Restrict access to appliance ports In a reverse HTTPS proxy configuration, access should be restricted to the proxy ports of the appliance. You need to configure the user interface and file server settings accordingly. 1 Go to Configuration | Appliances. 2 On the appliances tree, go to the appliance you want to restrict port access for and select User Interface. 3 Under HTTP Connector Port, enter the appliance proxy port (default: 9090). 4 Select File Server. 5 Under HTTP Connector Port, enter the appliance proxy port (default: 9090). 6 Click Save Changes. Restrict access to web servers The purpose of a reverse HTTPS proxy configuration is to protect a limited number of particular web servers against unwanted data uploads. For this configuration, you should therefore allow access to these servers only and block it for others. After access to others servers has been requested and blocked, it is also recommended that you let the appliance close these connections. To implement this you need to: • Create a list of the web servers you want to protect • Create a rule set for a blocking rule • Create a rule that blocks access to other web servers and closes connections to clients after blocking their requests McAfee Web Gateway 7.1.5 Product Guide 65
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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
Page 13 and 14: 1 Introduction Contents Comprehensi
Page 15 and 16: Deployment of the McAfee Web Gatewa
Page 17 and 18: Operating system Introduction Filte
Page 19 and 20: Introduction Chapters of this guide
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: Proxies and caching Reverse HTTPS p
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Page 69 and 70: 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
Page 81 and 82: 4 Rules and rule sets Contents Filt
Page 83 and 84: Rules and rule sets Filtering contr
Page 85 and 86: Modules for delivering filtering in
Page 87 and 88: Rules on the user interface On the
Page 89 and 90: Property of a URL Property — URL.
Page 91 and 92: About rule sets Rules and rule sets
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
Page 101 and 102: Add as many parameters as needed. A
Page 103 and 104: 3 Select Event. The Add Event windo
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
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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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