Q242898: IIS Log File Naming Syntax

Article: Q242898
Product(s): Internet Information Server
Version(s): winnt:4.0,5.0
Operating System(s): 
Keyword(s): 
Last Modified: 25-NOV-1999

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Internet Information Server 4.0 
- Microsoft Internet Information Services version 5.0 
-------------------------------------------------------------------------------

SUMMARY
=======

Internet Information Server (IIS) version 4.0 and Internet Information Services
version 5.0 support the following three log file formats:

- Microsoft IIS Log Format

- National Center for Supercomputing Applications (NCSA) Common Log File Format

- World Wide Web Consortium (W3C) Extended Log File Format

This article describes the naming syntax used when Internet Information Services
creates log files.

MORE INFORMATION
================

The following tables list the log file intervals and file names for each
available for each log file format using the following syntax:

- nn = Sequential Digits

- yy = Year

- mm = Month

- ww = Week

- dd = Day

- hh = Hour (24-hour format)

Microsoft IIS Log Format:

  
  +---------------------------------+
  | Log Interval | Filename Pattern | 
  +---------------------------------+
  | File Size    | inetsvnn.log     | 
  +---------------------------------+
  | Hourly       | inyymmddhh.log   | 
  +---------------------------------+
  | Daily        | inyymmdd.log     | 
  +---------------------------------+
  | Weekly       | inyymmww.log     | 
  +---------------------------------+
  | Monthly      | inyymm.log       | 
  +---------------------------------+

NCSA Common Log File Format:

  
  +----------------------------+
  | File Size | ncsann.log     | 
  +----------------------------+
  | Hourly    | ncyymmddhh.log | 
  +----------------------------+
  | Daily     | ncyymmdd.log   | 
  +----------------------------+
  | Weekly    | ncyymmww.log   | 
  +----------------------------+
  | Monthly   | ncyymm.log     | 
  +----------------------------+

W3C Extended Log File Format:

  
  +----------------------------+
  | File Size | extendnn.log   | 
  +----------------------------+
  | Hourly    | exyymmddhh.log | 
  +----------------------------+
  | Daily     | exyymmdd.log   | 
  +----------------------------+
  | Weekly    | exyymmww.log   | 
  +----------------------------+
  | Monthly   | exyymm.log     | 
  +----------------------------+

Additional query words:

======================================================================
Keywords          :  
Technology        : kbiisSearch kbiis500 kbiis400
Version           : winnt:4.0,5.0
Issue type        : kbhowto

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1986-2002.