Web Gateway 7.1.5 Product Guide - McAfee

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3 Proxies and caching Network modes After selecting this option, the following list is displayed for entering ports: • Port Redirects — List of ports that are involved in the redirection using the Layer 2 method The following table describes the list entries. For information on maintaining a list of this type, see Inline lists. Table 3-2 Port Redirects list Option Definition Original destination port Port that the data packets belonging to a client request were originally directed to Destination proxy port Port that data packets are redirected to Comment Plain-text comment on the port Advanced Outgoing Connection Settings Settings specifying methods for handling information contained in client requests sent to web servers that are requirements for the network environment of the appliance IP spoofing (HTTP, HTTPS, FTP) — When selected, the appliance keeps the client IP address that is contained in a client request as the source address and uses it in communication with the requested web server under various protocols When WCCP services are used for intercepting web traffic and directing it to the appliance, you need to configure two services for each port on the appliance that listens to client requests: one for the requests that come in from the clients, and one for responses to these requests that are sent by the web servers. When this option is not selected, the appliance chooses a source port and uses it in this communication. • IP spoofing for explicit proxy connections — When selected, client addresses are kept in explicit proxy communication, in which web traffic is not intercepted by an additional device • Use same source port as client for IP spoofing — When selected, client source ports are kept and used in addition to client source addresses for communication with web servers When this option is not selected, the appliance chooses a random source port and uses it in this communication. HTTP(S): Host header has priority over original destination address (transparent proxy) — When selected, the appliance uses the destination address that is included in the host header of a client request under the HTTP or HTTPS protocol for communication with the requested web server For more information on the WCCP services needed to perform IP spoofing, see WCCP service settings for IP spoofing. 42 McAfee Web Gateway 7.1.5 Product Guide
Proxies and caching Network modes 3 WCCP service settings for IP spoofing You can use IP spoofing in a configuration with WCCP services that intercept web traffic and direct it to the appliance. In this case, you need to configure two services for all ports on the appliance that listen to client requests. One of these services is for the requests that come in from the clients and another one for responses to these requests that are sent by the web servers. The table below shows sample parameters for two services. Table 3-3 WCCP services for IP spoofing Option Service for incoming requests Service for web server responses Service ID 51 52 WCCP router definition 10.150.107.254 10.150.107.254 Ports to be redirected 80, 443 80, 443 Ports to be redirected are source ports false true Proxy listener IP address 10.150.107.251 10.150.107.251 Proxy listener port 9090 9090 MD5 authentication key �� Input for load This main item does not appear in the settings list, but is visible in the Add and Edit distribution windows. The following four elements are related to it Source IP false false Destination IP true true Source port false false Destination port false false Assignment method This main item does not appear in the settings list, but is visible in the Add and Edit windows. The Assignment by mask and Assignment by hash elements are related to it. Assignment by mask true true Assignment by hash false false Assignment weight 100 100 Forwarding method This main item does not appear in the settings list, but is visible in the Add and Edit windows. The GRE-encapsulated and L2-rewrite to local NIC elements are related to it. GRE-encapsulated false false L2-rewrite to local NIC true true L2-redirect target eth1 eth1 Magic (Mask assignment) Comment -1 -1 McAfee Web Gateway 7.1.5 Product Guide 43
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 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: Table 3-1 WCCP Services list (conti
Page 45 and 46: Transparent bridge mode Proxies and
Page 47 and 48: Proxies and caching Network modes 3
Page 49 and 50: Transparent router mode Proxies and
Page 51 and 52: Proxies and caching Network modes 3
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
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
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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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Web Gateway 7.1.5 Product Guide - McAfee

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