title: SSH fingerprint verification for Amazon AWS EC2 server with ECDSA?
body: <p>When I create a new Amazon EC2 server, I connect to it using <code>ssh</code> as usual.</p>
  
  <p>I see the typical warning:</p>
  
  <pre><code>$ ssh myserver  
  The authenticity of host 'ec2-12-34-567-890.compute-1.amazonaws.com (12.34.567.890)'     can't be established.
  ECDSA key fingerprint is 31:66:15:d2:19:41:2b:09:8a:8f:9f:bd:de:c6:ff:07.
  Are you sure you want to continue connecting (yes/no)? 
  </code></pre>
  
  <p>How do I verify the fingerprint before I sign in? </p>
  
  <p>Ideally an answer is based on something besides the original creation console log -- because the log may get flushed out after a system restart, or during a large system installation script that generates a lot of output, or the connection is to an older system with keys that weren't tracked at creation time.</p>