http://kugelbus.cs.tu-berlin.de:6666/juttacgi/boing.cgiWhat does that mean?
httpis the protocol you use to access the whole document;
kugelbus.cs.tu-berlin.de:6666is the domain name of a WWW server I run on my machine, which lives in the domain of the computer science department at the technical university of Berlin, Germany;
/juttacgi. There's no physical directory of that name, but a line in the http server's configuration file tells it to translate requests to
/juttacgito something else that does exist.
boing.cgiis the file name of the executable in that directory.
PATH_INFOcomponent, and the comment in the
QUERY_STRING. The result looks like this: