Web Gateway 7.1.5 Product Guide - McAfee

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8 Monitoring Logging Create a log handler When you create new logging rules, you can insert them into existing logging rule sets or create new rule sets for them. These must be nested themselves in top-level rule sets known as log handlers. This section tells you how to create a log handler. Note: You can also use the Default log handler for inserting new logging rule sets. Complete the following procedure to do this: 1 Go to Policy | Rule Sets. 2 From the Rule Sets menu, select Log Handler. 3 On the log handler tree, navigate to the position where you want to insert the new log handler. Then click Add. 4 From the drop-down menu that appears, select Log Handler. The Add New Log Handler window opens with the Rule Sets tab selected. 5 Configure the following general settings: • Name — Name of the log handler • Enable — When selected, the log handler is enabled. • [Optional] Comment — Plain-text comment on the log handler. 6 [Optional] Click the Permissions tab and configure who is allowed to access the new log handler. 7 Click OK to close the Add New Log Handler window. The log handler is inserted into the tree structure. 8 Click Save Changes. You can now insert one or more nested rule sets into the log handler and fill these with rules. For more information, see Add a new rule set, Create a sample logging rule, and Access restrictions. Use self-configured log files You can use log files of your own to monitor appliance behavior and have entries written into them by rules. This section explains how this is done. Complete the following procedure to enable the use of your own log files: 1 Go to Policy | Rule Sets. 2 Use the items on this tab to create a log handler and a nested rule set within this log handler. 3 Create a log for storing log files: a Go to Policy | Settings. b Go to File System Logging and select one of the existing settings, for example, Access Log Configuration. These will serve as the starting point for creating new setting, including settings for a new log. c Click Add above the Settings tree. The Add Settings window opens. d In the Name field, enter a name for the new settings. e [Optional] Type a comment on the new settings and use the Permission tab to configure who is allowed access to the new settings. f Under Name of the log, type the name of the new log. g Configure other items of the new settings as needed. h Click OK. The Add Settings window closes and the new settings appear under File System Logging on the Settings tree. 282 McAfee Web Gateway 7.1.5 Product Guide
Monitoring Logging 8 4 Go to Policy | Rule Sets and insert a logging rule that triggers events when its criteria is matched into the rule set you created in step 2. The logging rule should triggers the following events if its criteria is matched: • A set event that sets parameter values for a log file entry • A write event that writes the entry into a log file of the log you created Note: The criteria of the logging rule relates to what you want to log, for example, Antimalware.Infected equals true as the criteria if you want to log requests for infected objects. Then the set and write events are triggered if an object is found to be infected. 5 Click Save Changes. The new log and the log files are stored in a folder of the program files for McAfee Web Gateway. To view them, navigate with your file manager to the location where these program files are stored and go to: /opt/mwg/log/user-defined-logs// For more information, see Create a log handler, Add a new rule set, Create a sample logging rule, Configuring log file settings, and Access restrictions. Use of a property in a logging rule to record blocking key words When user access to web objects is blocked on the appliance, you can in some situations use the List.LastMatches property to find out why it was done. This section explains what you need to configure to use the property in this way. The implemented rules on your appliance could, for example, include a rule for blocking access to web objects containing unwanted text, which is identified by the occurrence of “bad” key words. Then you might be interested in knowing not only that access to an object has been blocked, but also what the key words were that led to the blocking. To find out about the key words, you need to configure the following: • A list of the key words • A rule that blocks access to web objects with text containing the key words • An addition to a default logging rule to let it record the key words List of key words You can create a list of key words on the Lists tab and fill it with suitable entries. For more information on how to create this list, see Create a list of key words. Rule for blocking text with key words You can create a rule for blocking text with key words, which must be contained in a rule set. You can create both items on the Rule Sets tab. The following is an example of what the blocking rule could look like: Block text with bad words User-Defined.listOfWords at least one in list BadWords –> Block The rule uses the User-Defined.ListOfWords property to compare the text contained in the body of a web object with the words in the BadWords list. The value of the property is a string list of all the words that are in this text. If one of these words matches a word from the list, access to the web object with this text is blocked for the user who requested it. Processing then stops and continues with the next request that is received on the appliance. McAfee Web Gateway 7.1.5 Product Guide 283
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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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Page 235 and 236: Web filtering Supporting functions
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Page 255 and 256: System configuration System setting
Page 257 and 258: Database updates Table 7-13 File Ed
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Page 265 and 266: Scheduled job settings This section
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Page 269 and 270: 8 Monitoring Contents Monitoring th
Page 271 and 272: Monitoring Dashboard 8 Overview of
Page 273 and 274: Charts and Tables tab Monitoring Da
Page 275 and 276: Table 8-4 Overview of charts and ta
Page 277 and 278: Logging Monitoring Logging 8 Applia
Page 279 and 280: Sample logging rule Monitoring Logg
Page 281: 13 Configure the following for the
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Page 295 and 296: Log handler rule sets Monitoring Lo
Page 297 and 298: Performance measurement Monitoring
Page 299 and 300: Monitoring Performance measurement
Page 301 and 302: Transferring data to an ePO server
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Page 305 and 306: Error handling Table 8-7 Trap Sinks
Page 307 and 308: Rule sets for error handling Monito
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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
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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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