Teaching:TUW - UE InfoVis WS 2005/06 - Gruppe G3 - Aufgabe 3

Dataset Analysis

The Common Logfile Format

According to the World Wide Web Consortium the Common Logfile Format is as follows:

   remotehost rfc931 authuser [date] "request" status bytes

remotehost: Remote hostname (or IP number if DNS hostname is not available, or if DNSLookup is Off.

rfc931: The remote logname of the user.

authuser: The username as which the user has authenticated himself.

[date]: Date and time of the request.

"request": The request line exactly as it came from the client.

status: The HTTP status code returned to the client.

bytes: The content-length of the document transferred. [1][W3C]

Example

   66.249.71.39 - - [16/Oct/2005:05:57:17 +0200] "GET /robots.txt HTTP/1.0" 404 290 "-" "Googlebot/2.1 (+http://www.google.com/bot.html)"

remotehost: 66.249.71.39

rfc931: -

authuser: -

[date]: [16/Oct/2005:05:57:17 +0200]

"request": "GET /robots.txt HTTP/1.0"

status: 404

bytes: 290

HTTP Status Codes

Status-Code zugehörige Meldung 100 Continue 101 Switching Protocols 200 OK 201 Created 202 Accepted 203 Non-Authoritative Information 204 No Content 205 Reset Content 206 Partial Content 300 Multiple Choices 301 Moved Permanently 302 Moved Temporarily 303 See Other 304 Not Modified 305 Use Proxy 306 [Unused] 307 Temporary Redirect 400 Bad Request 401 Unauthorized 402 Payment Required 403 Forbidden 404 Not Found 405 Method Not Allowed 406 Not Acceptable 407 Proxy Authentication Required 408 Request Timeout 409 Conflict 410 Gone 411 Length Required 412 Precondition Failed 413 Request Entity Too Large 414 Request-URL Too Long 415 Unsupported Media Type 416 Requested Range Not Satisfiable 417 Expectation Failed 500 Internal Server Error 501 Not Implemented 502 Bad Gateway 503 Service Unavailable 504 Gateway Timeout 505 HTTP Version Not Supported

References

[1][W3C]World Wide Web Consortium, Logging Control In W3C httpd. Created at: July, 1995. Retrieved at: November 16, 2005. http://www.w3.org/Daemon/User/Config/Logging.html#common-logfile-format.