Overview The element of the element contains attributes that allow you to configure default logging for a site on IIS 7 and later. For example, you can enable or disable logging, configure the format of the IIS log file, specify the categories of information to store in the log file, and change the directory where the log file is stored. You can also use the element to control how often IIS creates a new log file based either on log file size or time interval and the maximum size (in bytes) that a log file can become. By default, IIS 7 and later uses the World Wide Web Consortium (W3C) log file format. You can change this setting by modifying the logFormat attribute to IIS, NCSA, or Custom. Note If the element is configured in both the section and in the section for a specific site, the configuration in the section is used for that site. IIS 8.5 enables you to log custom fields in addition to the standard logged set. The log file format must be W3C to add custom fields. For more information, see. Compatibility Version Notes IIS 10.0 The element was not modified in IIS 10.0. IIS 8.5 Added the flushByEntrycountW3CLog attribute to specify the number of events to be store in the buffer before they are flushed to the log file. Added the logTargetW3C attribute to specify how logged IIS events are processed. Added the maxLogLineLength attribute to specify the maximum length of a line in a log file. Added the child element. IIS 8.0 The logSiteId attribute was added to specify the contents of the -sitename field, and referer flag was added to the default value of the logExtFileFlags attribute. Apr 07, 2009 Free Download IIS Log Viewer 1.1 - Watch IIS log files with the help of this tool. Where can I find the IIS logs? Any pointer as to where in the Event Viewer to look, or how best to filter the information there? – Kjartan Jun 21 '11 at 14:15. Apr 10, 2013. A graphical interface for watching IIS log files. Makes copies of the current logfile at given intervals which gives the impression of realtime monitoring of the server traffic. IIS Log Viewer Web Site. Failed Request Tracing logs are very frequently looked by a few like me, who live on troubleshooting problems. There were a lot of times, I had to choose the right. Apr 27, 2017. IISLogViewer (Size 471 KB): Whats new in this version: Some bug fixes. IIS 7.5 The element was not modified in IIS 7.5. IIS 7.0 The element of the element was introduced in IIS 7.0. IIS 6.0 The element replaces sections of the logging properties on the IIS 6.0 IIsWebService metabase object. Setup The element is included in the default installation of IIS 7 and later. How To How to edit the default logging settings for a server • Open Internet Information Services (IIS) Manager: • If you are using Windows Server 2012 or Windows Server 2012 R2: • On the taskbar, click Server Manager, click Tools, and then click Internet Information Services (IIS) Manager. • If you are using Windows 8 or Windows 8.1: • Hold down the Windows key, press the letter X, and then click Control Panel. • Click Administrative Tools, and then double-click Internet Information Services (IIS) Manager. • If you are using Windows Server 2008 or Windows Server 2008 R2: • On the taskbar, click Start, point to Administrative Tools, and then click Internet Information Services (IIS) Manager. • If you are using Windows Vista or Windows 7: • On the taskbar, click Start, and then click Control Panel. • Double-click Administrative Tools, and then double-click Internet Information Services (IIS) Manager. • In the Connections pane, click the server name on which you want to configure logging. • In the Home pane, double-click Logging. • In the Logging pane, select the log file format in the Format box, and then type the path to the directory where you store the log files in the Directory box or click Browse. To choose the directory in which to store the log files. • If you choose to use the W3C log file format: • Click Select Fields to choose the types of information to log. • In the W3C Logging Fields dialog box, select the check boxes for options you want to log, clear the check boxes for options you do not want to log, and then click OK. How to configure ETW or file logging for W3C logs • Open Internet Information Services (IIS) Manager: • If you are using Windows Server 2012 R2: • On the taskbar, click Server Manager, click Tools, and then click Internet Information Services (IIS) Manager. • If you are using Windows 8.1: • Hold down the Windows key, press the letter X, and then click Control Panel. • Click Administrative Tools, and then double-click Internet Information Services (IIS) Manager. • In the Connections pane, expand the server name. • In the site's home pane, double-click Logging. • In the Logging home page, for Log Event Destination, select Log file only, ETW event only, or Both log file and ETW event. How to configure flushing a W3C log by entry count • Open Internet Information Services (IIS) Manager: • If you are using Windows Server 2012 R2: • On the taskbar, click Server Manager, click Tools, and then click Internet Information Services (IIS) Manager. • If you are using Windows 8.1: • Hold down the Windows key, press the letter X, and then click Control Panel. • Click Administrative Tools, and then double-click Internet Information Services (IIS) Manager. • In the Connections pane, select the server, and then double-click Configuration Editor. • In the Configuration Editor, for the Section, expand system.applicationHost, and then select sites. • Expand siteDefaults, and then expand logFile. • For flushByEntryCountW3Clog, enter the number of events to be stored in the buffer before they are flushed to the log file. • In the Action pane, click Apply. How to configure the maximum log line length • Open Internet Information Services (IIS) Manager: • If you are using Windows Server 2012 R2: • On the taskbar, click Server Manager, click Tools, and then click Internet Information Services (IIS) Manager. • If you are using Windows 8.1: • Hold down the Windows key, press the letter X, and then click Control Panel. • Click Administrative Tools, and then double-click Internet Information Services (IIS) Manager. • In the Connections pane, expand the server, and then double-click Configuration Editor. • In the Configuration Editor, for the Section, expand system.applicationHost, and then select sites. • Expand siteDefaults, and then expand logFile. • For maxLogLineLength, enter the maximum number of bytes in a single line of a log file. • In the Action pane, click Apply. Configuration Attributes Attribute Description customLogPluginClsid Optional string attribute. Specifies the COM object class ID (CLSID) or IDs, in order of precedence, for custom modules. Directory Optional string attribute. Specifies the logging directory, where the log file and logging-related support files are stored. The default value is%SystemDrive% inetpub logs LogFiles. Enabled Optional Boolean attribute. Specifies whether logging is enabled ( true) or disabled ( false) for a site. Note: ASP and ODBC errors are not logged in the IIS log files. The default value is true. FlushByEntryCountW3CLog Optional uint attribute. Specifies the number of events to be stored in the buffer before they are flushed to the log file. A lower number will cause events to be flushed more quickly, at the cost of performance as a result of a greater number of disk operations. Reduce this value for more real-time troubleshooting, increase it for performance. A value of 0 specifies that the flush will occur at the default maximum of 64k. The default value is 0. LocalTimeRollover Optional Boolean attribute. Specifies whether a new log file is created based on local time or Coordinated Universal Time (UTC), which was previously called Greenwich Mean Time (GMT). When false, a new log file is created based on UTC. Note: Regardless of the setting, the time stamp for each W3C Extended Logging log record is UTC-based. The default value is false. LogExtFileFlags Optional flags attribute. Specifies the categories of information that are written to either the log file (when you use W3C Extended log file format) or to the ODBC data source during logging events for a site. The logExtFileFlags attribute can be one or more of the following values. If you specify more than one value, separate them with a comma (,). The default values are Date, Time, ClientIP, UserName, ServerIP, Method, UriStem, UriQuery, TimeTaken, HttpStatus, Win32Status, ServerPort, UserAgent, HttpSubStatus, Referer. Value Description BytesRecv Log the number of bytes that the server received. BytesSent Log the number of bytes that the server sent. ClientIP Log the IP address of the client that made the request. ComputerName Log the name of the server on which the log file entry was generated. Cookie Log the content of the cookie that was sent or received, if any content exists. Date Log the date on which the activity occurred. Host Log the host header name, if there is one. HttpStatus Log the HTTP status code. HttpSubStatus Log the sub-status code of the HTTP error. For example, for the 500.18 HTTP error, the status code is 500 and the sub-status code is 18. Method Log the requested action. For example, GET, POST, etc. ProtocolVersion Log the protocol version that the client used. Referer Log the site that the user last visited. This site provided a link to the current site. ServerIP Log the IP address of the server on which the log file entry was generated. ServerPort Log the server port number that is configured for the site. SiteName Log the Internet service name and instance number for the site. Time Log the time in Coordinated Universal Time (UTC), at which the activity occurred. TimeTaken Log the length of time taken for a request to be completed. The time taken is recorded in milliseconds. Note: The client-request timestamp is initialized when HTTP.sys receives the first byte, but before HTTP.sys begins to parse the request. The client-request timestamp is stopped when the last IIS send completion occurs. Time taken does not reflect time across the network. The first request to the site shows a slightly longer time taken than other similar requests because HTTP.sys opens the log file that contains the first request. UriQuery Log the query, if any, that the client was trying to perform. A Universal Resource Identifier (URI) query is necessary only for dynamic pages, and usually consists of parameters passed to the URL. UriStem Log the Universal Resource Identifier (URI) stem information, which is the target of the action. For example, Default.htm. UserAgent Log the browser type that the client used. UserName Log the name of the authenticated user who accessed your server. Anonymous users are indicated by a hyphen. Win32Status Log the Windows status code. LogFormat Optional enum attribute. Specifies the log file format. The logFormat attribute can be one of the following values. The default value is W3C. Value Description Custom Use a custom log file format for a custom logging module. The numeric value is 3. IIS Use the Microsoft IIS log file format to log information about a site. This format is handled by HTTP.sys, and is a fixed ASCII text-based format, which means that you cannot customize the fields that are logged. Fields are separated by commas, and time is recorded as local time.
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