This field is necessary to distinguish servers for a multihomed log data source. The following paragraphs contain samples of the varios log file formats. Any text following the file size on a log file line is ignored by Usage Import. This format was designed to be compatible with many of the custom extended log file formats currently in use. Not all fields are required to comply with the format.
Quotes enclosing the referrer string are optional but recommended.
If quotes start the referrer string, quotes must end it. If quotes are not used and the referrer is blank, a hyphen is accepted as a blank referrer string. User agent strings must be surrounded by quotes. Cookie strings must be surrounded by quotes. This log file format includes usage information for Web, Gopher, and FTP servers that run under the Microsoft IIS Server.