All this information can be accessed at any given time by the server:

SCRIPT_URL=/~awwatkin/SHTML/dump.shtml
SCRIPT_URI=http://www4.ncsu.edu/~awwatkin/SHTML/dump.shtml
LD_LIBRARY_PATH=/local/lib:
HTTP_HOST=www4.ncsu.edu
HTTP_ACCEPT_ENCODING=x-gzip, gzip, deflate
HTTP_USER_AGENT=CCBot/2.0 (http://commoncrawl.org/faq/)
HTTP_ACCEPT_LANGUAGE=en-us,en-gb,en;q=0.7,*;q=0.3
HTTP_ACCEPT=text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
PATH=/bin:/usr/bin:/local/cron:/local/adm
SERVER_SIGNATURE=
SERVER_SOFTWARE=Apache
SERVER_NAME=www4.ncsu.edu
SERVER_ADDR=152.1.226.12
SERVER_PORT=80
REMOTE_ADDR=54.87.123.99
DOCUMENT_ROOT=/afs/unity/project/www/ncsu/misc/www4
SERVER_ADMIN=webmaster@ncsu.edu
SCRIPT_FILENAME=/afs/unity.ncsu.edu/users/a/awwatkin/www/SHTML/dump.shtml
REMOTE_PORT=59715
GATEWAY_INTERFACE=CGI/1.1
SERVER_PROTOCOL=HTTP/1.0
REQUEST_METHOD=GET
QUERY_STRING=
REQUEST_URI=/~awwatkin/SHTML/dump.shtml
SCRIPT_NAME=/~awwatkin/SHTML/dump.shtml
DATE_LOCAL=Friday, 31-Oct-2014 14:24:53 EDT
DATE_GMT=Friday, 31-Oct-2014 18:24:53 GMT
LAST_MODIFIED=Wednesday, 20-Nov-2002 01:30:22 EST
DOCUMENT_URI=/~awwatkin/SHTML/dump.shtml
USER_NAME=awwatkin
DOCUMENT_NAME=dump.shtml