Need to pass the entire CGI collection

A majority of the CGI variables are pulled from the connection established and then converted into environment variables.

You shouldn't have to do anything as the BIG-IP will transparently pass all HTTP headers through to your backend servers. There should be no change necessary to your web applications to access those CGI variables.

Are you having a problem or are you just predicting possible issues that may come up?

Here is a nice little script I use when testing CGI variables on a unix platform. Plop this in your backend server's CGI directory and try to access it. It will print out all environment variables passed into it.

!/bin/sh
date=`date -u '+%a, %d %b %Y %H:%M:%S %Z'`
cat << EOF
Content-type: text/plain
Expires: $date
CGI printenv
EOF
echo 'Date:'
date
echo
echo 'Id:'
id
echo
echo 'Env:'
printenv
echo
if [ "$CONTENT_LENGTH" != "" ] ; then
    if [ "$CONTENT_LENGTH" -ne 0 ] ; then
    echo 'Input:'
    echo
    dd bs=1 count=$CONTENT_LENGTH
    echo
    fi
fi

Here's the output from one of my servers behind my v9.2 BIG-IP (with sensitive info starred out).

CGI printenv

Date:

Tue Dec 27 09:40:00 PST 2005

Id:

uid=48(apache) gid=48(apache) groups=48(apache)

Env:

SERVER_SIGNATURE=****

UNIQUE_ID=@QO6-X8AAAEAAEpeDgsAAAAA

HTTP_KEEP_ALIVE=300

HTTP_USER_AGENT=Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5

SERVER_PORT=80

HTTP_HOST=****

DOCUMENT_ROOT=/usr/local/www

HTTP_ACCEPT_CHARSET=ISO-8859-1,utf-8;q=0.7,*;q=0.7

SCRIPT_FILENAME=/usr/local/www/cgi-bin/printenv.cgi

REQUEST_URI=/cgi-bin/printenv.cgi

SCRIPT_NAME=/cgi-bin/printenv.cgi

REMOTE_USER=****

AUTH_TYPE=Basic

HTTP_CONNECTION=keep-alive

REMOTE_PORT=2392

PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin

PWD=/usr/local/www/cgi-bin

SERVER_ADMIN=****

HTTP_ACCEPT_LANGUAGE=en-us,en;q=0.5

HTTP_ACCEPT=text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5

REMOTE_ADDR=*.*.*.*

SHLVL=1

SERVER_NAME=****

SERVER_SOFTWARE=****

QUERY_STRING=

SERVER_ADDR=*.*.*.*

GATEWAY_INTERFACE=CGI/1.1

SERVER_PROTOCOL=HTTP/1.1

HTTP_ACCEPT_ENCODING=gzip,deflate

REQUEST_METHOD=GET

_=/usr/bin/printenv

The variables you mentioned all seem to be in there.

-Joe