Forum Discussion
BrianG_11931
Nimbostratus
NimbostratusHTTP Health Monitor Issue
Hello, I tried creating a Health Monitor to test server-specific content returned from a web server query, but it's currently not working and my servers are in an "Offline (Enabled)" state.
From a ...
That tcpdump command I listed above should have created a capture file in/var/tmp. You can SCP the file down to your workstation and open it in Wireshark. Let it run for about 30 seconds and then press Ctrl-c to stop the capture.
Cory_50405
Noctilucent
NoctilucentThat tcpdump command I listed above should have created a capture file in/var/tmp. You can SCP the file down to your workstation and open it in Wireshark. Let it run for about 30 seconds and then press Ctrl-c to stop the capture.
BrianG_11931Unfortunately I was kicked off the Wi-Fi and the command is no longer running in the terminal session for me to stop the capture, even though I logged back in with the same account. How can I stop this process? I'm afraid I'm not a Linux person.- Cory_50405You can just restart it by running the command again.
- BrianG_11931I tried the following and all are returning "HTTP/1.1 400 Bad Request", from what I can tell. "GET /elevationWS/WS/34.9793,-80.9714 HTTP/1.1\r\nHost: \r\nConnection: Close\r\n\" "GET /elevationWS/WS/34.9793,-80.9714 HTTP/1.1\r\nHost: \r\nConnection: Close\r\n\r\n\" "GET \"/elevationWS/WS/34.9793,-80.9714\" HTTP/1.1\r\nHost: \r\nConnection: Close\r\n\" Any suggestions?
- Cory_50405If you run a curl from the LTM CLI, what do you get? curl http://172.24.48.9:8080/elevationWS/WS/34.9793,-80.9714
- BrianG_11931I get "548.639885938420834.9793-80.971430-mbig", which is also what I'm seeing with a browser response.
- Cory_50405So there's something wrong with that GET string then. Can you change it to this and try again: GET /elevationWS/WS/34.9793,-80.9714 HTTP/1.1\r\nHost: BIG-IP\r\nConnection: Close\r\n\r\n Might be due to the host in the send string being blank. Either that or remove the host completely: GET /elevationWS/WS/34.9793,-80.9714 HTTP/1.1\r\nConnection: Close\r\n\r\n
- BrianG_11931Thanks! Your first suggestion was right, I had to add "BIG-IP" after "Host:", but leaving "Host:" out didn't work. This is health monitor is now working successfully. Thanks again.
- Cory_50405Glad to hear.