Enabling W3C logging will cause the ADC to start recording a W3C compatible log file. A W3C log is an access log for Web servers in which text files are generated containing data about each access request, including the source Internet Protocol (IP) address, the HTTP version, the browser type, the referrer page, and the time stamp. The format was developed by the World Wide Web Consortium (W3C), an organization that promotes standards for the evolution of the Web. The file is in ASCII text, with space-delimited columns. The file holds comment lines beginning with the # character. One of these comment lines is a line indicating the fields (providing column names) so that data can be mined. There are separate files for HTTP and FTP protocols.
W3C Logging Levels
There are different logging levels available, and depending on the service type, the data provided varies.
The table above describes logging levels for W3C HTTP.
Value
Description
None
W3C logging is off.
Brief
The fields present are: #Fields: time c-ip c-port s-ip method uri x-c-version x-r-version sc-status cs-bytes sr-bytes rs-bytes sc-bytes x-percent time-taken x- round-trip-time cs(User-Agent) x-sc(Content-Type).
Full
This is a more processor-compatible format with separate date and time fields. See the fields summary below for information on what the fields mean. The fields present are: #Fields: date time c-ip c-port cs-username s-ip s-port cs-method cs-uri-stem cs-ur- -query sc-status cs(User-Agent) referer x-c-version x-r-version cs-bytes sr-bytes rs-bytes sc-bytes x-percent time-taken x-roun-trip-time x-sc(Content-Type).
Site
This format is very similar to “Full” but has an additional field. See the summary of the fields below for information on what the fields mean. The fields present are: #Fields: date time x-mil c-ip c-port cs-username s-ip s-port cs-host cs-method cs-uri-stem cs-ur--query sc-status cs(User-Agent) referer x-c-version x-r-version cs-bytes sr-bytes rs-bytes sc-bytes x-percent time-taken x-round--trip-time x-sc(Content-Type).
Diagnostic
This format is filled with all sorts of information relevant to development and support staff. See the fields summary below for information on what the fields mean. The fields present are: #Fields: date time c-ip c-port cs-username s-ip s-port x-xff x-xffcustom cs-host x-r-ip x-r-port cs-method cs-uri-stem cs-uri-query sc-status cs(User-Agent) referer x-c-version x-r-version cs-bytes sr-bytes rs-bytes sc-bytes x-percent time-taken x-round-trip-time x-trip-times(new,rcon,rqf,rql,tqf,tql,rsf,rsl,tsf,tsl,dis,log) x-closed-by x- compress-action x-sc(Content-Type) x-cache-action X-finish
The table below describes logging levels for W3C FTP.
Value
Description
Brief
#Fields: date time c-ip c-port s-ip s-port r-ip r-port cs-method cs-param sc-status sc-param sr-method sr-param rs-status rs-param
This option allows you to set what ADC information should be included in the W3C logs.
Value
Description
Client’s Network Address and Port
The value shown here displays the actual client IP address along with the port.
Client’s Network Address
This option will include and only show the actual client IP address.
Forwarded-For Address and Port
This option will show the details held in the XFF header, including the address and port.
Forwarded-For Address
This option will show the details held in the XFF header, including the address only.
Include Security Information
This menu consists of two options:
Value
Description
On
This setting is global. When set to on, the username will be appended to W3C log when any Virtual Service is using Authentication and has W3C logging enabled.
Off
This will turn off the ability to log the username to the W3C log on a global level.
