title: How to debug failed AWS elastic load balancer health checks
body: <p>I am at a loss trying to debug my ELB setup.</p>
  
  <p>I have setup a load balancer with a single instance.  I verified the configured health check works from the instance, and from another instance inside EC2.  At this point I removed all possibly conflicting security group rules.  Still the load balancer thinks the instance is not reachable.</p>
  
  <p>I have copiously googled and gone through <a href="http://shlomoswidler.com/2009/09/solving-common-elb-problems-with-sanity.html" rel="noreferrer">this checklist</a>. </p>
  
  <p>How can I get more information about the healthcheck failure?  What is the closest thing I can do to sshing into the load balancer and reproducing the failure?</p>
  
  <p>Thanks!</p>