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Forum Discussion

Chris1269_13050's avatar
Chris1269_13050
Icon for Nimbostratus rankNimbostratus
Nov 18, 2013

HTTP Health Monitor Receive String issue

I am currently having an issue with the Receive string part or a HTTP health monitor. I am using a GET request like: GET /default.aspx HTTP/1.1\r\nHost: myurl.com\r\n   I am also using authenticat...
health monitoring
management
Gerlan_32355's avatar
Gerlan_32355
Icon for Altostratus rankAltostratus
Dec 09, 2015
I inserted the User-Agent on request and worked well, too! Thanks for help! Follow the example of request: GET /system1/ HTTP/1.1\r\nHost: host1.mydomain.com\r\nUser-Agent: Mozilla/4.0 (Compatible; MSIE 6.0; Windows NT 5.0; T312461)\r\nConnection: Close\r\n\r\n Receive string: SystemOK
Aaron_F's avatar
Aaron_F
Icon for Nimbostratus rankNimbostratus
Jul 30, 2019

Ran into new use for this information. New Tomcat server deployments are returning HTTP 200 responses when sending CURL requests from the F5, but when using a basic HTTP health monitor, it was getting HTTP 500 response, resulting in failed health check. Turns out that new Tomcat web server versions are requiring User-Agent: be defined in the health monitor call from the F5 to the tomcat web servers running new software.