title: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password)
body: <p>I'm on a corp network. Basically a host with full domain name <code>hello.company.com</code> has an alias <code>hello</code>:</p>
  
  <pre><code>$ host hello
  hello.company.com
  </code></pre>
  
  <p><code>$ ssh hello.company.com</code> works well. </p>
  
  <p>But if I try <code>$ ssh hello</code> I get </p>
  
  <pre><code>Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).
  </code></pre>
  
  <p>What might be the cause of this problem?</p>