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Forum Discussion

justin_westover's avatar
justin_westover
Icon for Nimbostratus rankNimbostratus
Jul 09, 2014

HTTP Monitor not working

I have a very simple HTTP monitor configured that isn't working. When looking in the IIS logs the F5 isn't sending the send string and I can change the send string to anything "GET /blablabla" and th...
application delivery
deployment
LTM
TMSH
uni_87886's avatar
uni_87886
Icon for Cirrostratus rankCirrostratus
Jul 09, 2014

You will need a receive string configured - a string which must be in the response. Without it, all you're really doing is checking that the TCP connection succeeds. You could start with something simple like "200 OK"

 

justin_westover's avatar
justin_westover
Icon for Nimbostratus rankNimbostratus
Jul 09, 2014
So I have tried putting the receive string in but then I have the opposite problem and the node stays down. I setup a receive string to look for "200 OK" (no quotes) and also for "CSS Test file" as you will see below, this string is returned in the body of the GET query. I have included a telnet from the F5 on port 10000 and then a GET and the reply from the server. What would you match in this case? [root@F5_01:Active:Changes Pending] config telnet 172.16.101.65 10000 Trying 172.16.101.65... Connected to 172.16.101.65. Escape character is '^]'. GET /css.htm CSS Test file Connection closed by foreign host. If I match 200 OK or CSS Test file the node stay down until I remove the receive string. Thoughts?