I have several http sensors that I want to monitor the page load both in front and behind a load balancer. I want to use a simple HTTP sensor ever minute and a full page HTTP sensor every 10 minutes. The web servers will not respond if you dont specify a valid host header in the request.
I created a device for the IP address at the load balancer and three more devices (one per web server) with each of their IP addresses.
For each device, I then created a simple HTTP sensor with the full URL and it never loads. I get a "Read Timeout" error message on the status page.
For each device, I then created a full page load sensor with the full URL and it works!
What the heck is going on?
For web servers that dont require the host header, the simple HTTP sensor works fine.