title: Github Error: Agent admitted failure to sign on AWS EC2 instance
body: <p>I have tried to SSH into GitHub.com from AWS EC2 instance and got the following message on the terminal:</p>
  <pre><code>$ ssh -vT git@github.com
  .....
  .....
  &gt; Agent admitted failure to sign using the key.
  &gt; debug1: No more authentication methods to try.
  &gt; Permission denied (publickey).
  </code></pre>
  <p>My default ssh key file name and location is :  <code>/home/NAME/.ssh/id_rsa</code><br />
  I have tried to add <code>ssh-agent</code> using the <code>ssh-add</code> command but got the same problem.</p>
  <p>Any feedback or help would be received with gratitude. Thanks in Advance.</p>