Forum Discussion
Ken_04_163875
Nimbostratus
NimbostratusReceive String Not Reconized By Custom HTTP Health Check Monitor
Hi,
We're using a custom HTTP monitor for our application that hits a specific URL and checks the response to make sure that it is correct. The F5 is not recognizing the Receive string and thus is m...
gscholz_370150Nimbostratus
NimbostratusHave you tried running a tcpdump on port 80 to see exactly how the curl request is formed to get the intended result? Then you could edit the send string accordingly.
Ken_04_163875Nimbostratus
NimbostratusI have run a tcpdump on this request, and it returns the expected string (picture of Ken pulling out his hair).
What I don't understand is a telnet to this URL, with either a 1.0 or 1.1 HTTP request, fails, but a curl, using a 1.0 or 1.1 HTTP request, returns the correct string. Since the URL for the monitor check is hitting a separate war file, that then hits the application to determine it's availability, is it possible that this is considered a redirect (301) and thus telnet and the health monitor fails? There is no evidence of a redirect, either in telnet, curl, the monitor logs, or in a browser hitting the same URL...