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Forum Discussion

insert12_38638's avatar
insert12_38638
Icon for Nimbostratus rankNimbostratus
May 14, 2016

HTTP Monitor

Hi, I am trying to configure an HTTP monitor with following send and receive string but this monitor mark my pool as down   Send string = GET /xyz.abc.dyx.ezt.co.uk/alive HTTP/1.1\r\n Receive= al...
application delivery
LTM
Vijay_E's avatar
Vijay_E
Icon for Cirrus rankCirrus
Jul 01, 2016

Try this:

GET /alive HTTP/1.1\r\nHost: xyz.abc.dyx.ezt.co.uk\r\nConnection: Close\r\n\r\n

If it doesn't work, you can use this CURL command to check the output from bash on the F5:

curl -H "Host: xyz.abc.dyx.ezt.co.uk" http://x.x.x.x/alive

You can also use the following from bash for troubleshooting http monitor:

echo -e "GET /alive HTTP/1.1\r\nHost: xyz.abc.dyx.ezt.co.uk\r\nConnection: Close\r\n\r\n" | nc x.x.x.x 80

x.x.x.x is the IP of the pool member

Since you are running 11.6, you may be able to troubleshoot better using /var/log/monitors:

Look under "monitor logging" - https://support.f5.com/kb/en-us/solutions/public/12000/500/sol12531.html