title: How to generate the Certificate Chain for AWS load balancer?
body: <p>I'm using Amazon Load Balancer with SSL configuration. everything when fine except on Firefox that show the exception page. It looks not self to user. </p>
  
  <p>This <a href="http://www.nczonline.net/blog/2012/08/15/setting-up-ssl-on-an-amazon-elastic-load-balancer/" rel="noreferrer">article</a> suggest to put the Certificate Chain to the configuration section. </p>
  
  <p><img src="https://i.stack.imgur.com/QIckv.png" alt="enter image description here"></p>
  
  <p>My SSL provider is Comodo (InstantSSL). They provide two files .crt and .ca-bundle only.</p>
  
  <p>How can i generate the Certificate Chain?</p>