HTTP Monitor that follows redirects

Posted By hoolio on 07/13/2009 6:54 AM

 

Hi, could you post the final result for your external monitor using curl for an NTLTM pool?

 

Thanks,

 

Aaron

 

 

 

Aaron, here is one of the successful cURL commands against NTLM pools that I have gotten up and running ... (this is on a 9.3.1 setup)

 

 

This is used for SharePoint. The grep command would NOT give me a successful response if I queried for specific HTTP responses (i.e. "200 OK") so I had to look for text on the page being requested. It also follows the redirects, as the first time the monitor runs it receives a "401 Unauthorized" which I'm assuming equates to the login box popping up if viewed over a browser. The script tries a login a second time, which is accepted and then looks for the text specified. If you run it from the SSH console you'll see the entire process.

 

 

!/bin/sh

 

remove IPv6/IPv4 compatibility prefix (LTM passes addresses in IPv6 format)

 

IP=`echo ${1} | sed 's/::ffff://'`

 

IP=${1}

 

PORT=${2}

 

PIDFILE="/var/run/`basename ${0}`.${IP}_${PORT}.pid"

 

kill of the last instance of this monitor if hung and log current pid

 

if [ -f $PIDFILE ]

 

then

 

kill -9 `cat $PIDFILE` > /dev/null 2>&1

 

fi

 

echo "$$" > $PIDFILE

 

send request & check for expected response

 

curl -L --ntlm -k -v --user 'username@domain.org:password' http://${IP}:${PORT}/Pages/Default.aspx -H "Host: host.domain.org" | grep -i "Desired text on requested page" 2>&1 > /dev/null

 

mark node UP if expected response was received

 

if [ $? -eq 0 ]

 

then

 

echo "UP"

 

fi

 

rm -f $PIDFILE

 

exit