Common Log Format

The Common Log Format is a standardised text file format used by web servers when generating log files. Because the format is standardised, the files may be analysed by a variety of analysis programs.

Each line in a file stored in the Common Log Format has the following syntax:

host ident authuser date request status bytes

Example

 127.0.0.1 - frank [10/Oct/2000:13:55:36 -0700] "GET /apache_pb.gif HTTP/1.0" 200 2326

References

• Common Logfile Format as described in the documentation of the world wide web consortia webserver (W3C httpd).
• Common Logfile Format as described in the documentation of the apache webserver (1.3)

See also

• Log management and intelligence
• Web log analysis software
• Web counter
• Data logging
• Syslog