title: Maven site deploy authentication error with scp
body: <p>I get Auth fail error when running <code>mvn -X site:deploy</code>.</p>
  
  <pre><code>org.apache.maven.wagon.authentication.AuthenticationException: Cannot connect. Reason: Auth fail
  </code></pre>
  
  <p>It seems that the correct private key is used and I can scp files normally to the project site directory using scp on Ubuntu.</p>
  
  <p>What can be causing this?</p>