Web Gateway 7.1.5 Product Guide - McAfee

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8 Monitoring Logging Found Viruses This nested logging rule set records names of viruses and other malware found in requested web objects. Nested logging rule set — Found Viruses Log Criteria — Always The rule set contains the following rule: Write found viruses.log Antimalware.Infected equals true –> Continue — Set User-Defined.logLine = DateTime.ToWebReporterString + “ ”” ... FileSystemLogging.WriteLogEntry (User-Defined.logLine) The rule uses an event to fill a log file entry with parameter values relating to web objects infected by viruses or other malware, such as virus names or IP addresses. It uses another event to write this entry to a log file. The log file entry is specified as a parameter in both events. The log that stores the log file is specified by the settings of the write event. Values for the following parameters are set and logged by the events of the rule (properties used by the set event in italics): • Date and time — DateTime.ToWebReporterString • User name — Authentication.UserName • Client IP address — String.ReplaceIfEquals (IP.ToString(Client.IP), “”, “-”) • Virus and malware names — List.OfString.ToString (Antimalware.VirusNames) • URL — URL The logging rule applies whenever a requested web object has been found to be infected. The two rule events for filling and writing a log entry are then executed. Processing continues with the next rule or rule set. 296 McAfee Web Gateway 7.1.5 Product Guide
Performance measurement Monitoring Performance measurement 8 Processing time consumed for particular activities is measured on the appliance and displayed on the user interface. This section tells you where it is displayed and how you can set up rules for logging processing time and for measuring it on your own. View performance information How the appliance performs is measured by recording average processing times for several activities such as performing DNS lookups or processing client requests. This information is displayed on the dashboard of the user interface. To view this information: 1 Go to Dashboard | Charts and Tables. 2 Select Performance Information. For details about the information displayed here, see Overview of charts and tables information. Properties for logging performance information You can log performance information using logging rules with appropriate properties. For each type of performance information, a corresponding property is available. For example, the dashboard displays information on the average time it takes to resolve host names by looking up names on a DNS server. The property Timer.ResolveHostNameViaDNS corresponds to this information. The value of this property is the time that was consumed for looking up a host name appearing in a request that was processed on the appliance. The time is measured in milliseconds. You can use this property to create an element in a log line. When this line is written to a log file by a logging rule, the time for looking up host names is recorded together with other information covered by the log line. Other properties that make performance information available for logging include Timer.HandleConnect ToServer for measuring the time needed to connect to external servers or Timer.TimeConsumedByRule Engine for the time the rule engine needs to do its job when a request is received on the appliance. The time that is measured and made available by a property includes the time needed for the relevant activity, for example, connecting to external servers while a particular request was processed on the appliance throughout all relevant processing cycles (request, response, and embedded object cycles). Processing one individual request on the appliance is considered to be one transaction. A transaction need not go through all cycles for a given request. For example, if a user sends a request to access a web page falling into a category that is blocked under a particular web security policy, a block message is returned to this user, the request is not forwarded to a web server, and processing does not enter the response cycle. All properties that make performance information available for logging have the element Timer at the beginning of their names. For more information on these properties, see the List of properties. McAfee Web Gateway 7.1.5 Product Guide 297
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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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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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Page 269 and 270: 8 Monitoring Contents Monitoring th
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Page 277 and 278: Logging Monitoring Logging 8 Applia
Page 279 and 280: Sample logging rule Monitoring Logg
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Page 295: Log handler rule sets Monitoring Lo
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Page 305 and 306: Error handling Table 8-7 Trap Sinks
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Page 311 and 312: Monitoring Error handling 8 Handle
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Page 315 and 316: 9 Troubleshooting Contents Troubles
Page 317 and 318: Enable the creation of connection t
Page 319 and 320: List of actions Appendix: Configura
Page 321 and 322: Table A-2 List of error IDs (contin
Page 323 and 324: Table A-3 List of events (continued
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Page 327 and 328: List of incident IDs Appendix: Conf
Page 329 and 330: Table A-4 List of incident IDs (con
Page 331 and 332: Table A-5 List of properties (conti
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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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