Web Gateway 7.1.5 Product Guide - McAfee

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5 Authentication and access management Standard authentication Standard authentication To authenticate users on the appliance information is retrieved mainly from internal and external databases. This section describes the rules that control standard authentication and the settings for the module that handles the authentication process. Differerent methods can be configured on the appliance for authenticating users. With each of them, authentication information is retrieved in a different way. • NTLM — Uses a database on a Windows domain server • NTLM Agent — Uses an external agent on a Windows-based system for applying the NTLM authentication method • User database — Uses an internal database on the appliance • LDAP — Uses a database on an LDAP server • Novell eDirectory — Uses data from a directory on a server that takes the role of an LDAP server • RADIUS — Uses a database on a RADIUS server • Kerberos — Uses a database on a Kerberos server • SSL client certificate authentication — Uses a certificate that a client sends in SSL-secured communication • Authentication server — Uses a database on another external server An authentication rule includes settings for the module that retrieves the information. By configuring these settings you can specify which method should be used. Rules for authenticating users Rules for authenticating users are contained in an authentication rule set. This section describes an authentication rule set and explains how to modify one if its rules to implement a particular authentication method. An authentication rule set might not be implemented on the appliance after the initial setup, but you can import one from the rule set library. Note: If the library contains no rule set for authenticating user, it can still be part of the default system of rule sets. As usual, you can also configure an authentication rule set with rules of your own. Authenticate and Authorize This section describes the Authenticate and Authorize library rule set. The rules in this rule set control the authentication of users and allow only authorized users access to the web. Library rule set — Authenticate and Authorize Criteria — Connection.Protocol equals HTTP OR Connection.Protocol equals HTTPS Cycle — Requests (and IM) The rule set criteria specifies that the rule set applies when the protocol used on the connection for sending a request is either HTTP or HTTPs. The following rule sets are nested in this rule set: • Authenticate with User Database • Authorize 124 McAfee Web Gateway 7.1.5 Product Guide
Authentication and access management Standard authentication 5 The rule set has also two rules of its own, which are processed before the nested rule sets: Need to authorize Client IP? Client.IP is in range list Unauthorized IPs –> Stop Rule Set The rule uses the Client.IP property to check whether a request was sent from a client with an IP address that is in the range list for unauthorized IP addresses. If this is the case, processing the rule set stops. No activities are then carried out to authenticate a user. Processing continues with the next rule set. Note: This rule is not enabled by default. Need to authorize URL? URL is in list Unauthorized URLs –> Stop Rule Set The rule uses the URL property to check whether a URL that access was requested is in the list of unauthorized URLs. If this is the case, processing the rule set stops. No activities are then carried out to authenticate a user. Processing continues with the next rule set. Authenticate with User Database This nested rule set asks unauthenticated users to authenticate. Its authentication method is retrieving information from the internal user database. Nested library rule set — Authenticate with User Database Criteria — Authentication.IsAuthenticated equals false OR Authentication.Failed equals false Cycle — Requests (and IM) The rule set criteria specifies that the rule set applies when a user has not yet been authenticated or has undergone the authentication process, but authentication failed. The rule set contains the following rule: Authenticate with User Database Authentication.Authenticate equals false –> Authenticate The rule uses the Authentication.Authenticate property to check whether a user who sends a request for web access is authenticated. The settings that go with the property are the settings of the Authentication module. They specify that retrieving information from the internal user database on the appliance is used as the authentication method. If a user has not been authenticated by information from the internal database, the rule applies and the Authenticate action is executed. Processing stops and a message is displayed, asking the user to authenticate. The settings of the action specify that the message is displayed with default values. Processing continues when the next request is received on the appliance, which can be an authentication request by the same user. For information on how to modify the settings for the Authentication module to let the rule use a different authenticaiion method, such as NTM, LDAP, or others, see Implement an authentication method. McAfee Web Gateway 7.1.5 Product Guide 125
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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
Page 73 and 74: Preventing data leaks Proxies and c
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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 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
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Page 105 and 106: Adding the action 9 Select Action.
Page 107 and 108: Rules and rule sets Rule configurat
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Page 111 and 112: List maintenance Rules and rule set
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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
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Page 137 and 138: Table 5-8 Certificate Authorities l
Page 165 and 166: Administrator accounts Authenticati
Page 169 and 170: 6 Web filtering Contents Filtering
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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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