title: Cannot access Centos sshd on Docker
body: <p>I read an article that <a href="http://docs.docker.io/en/latest/examples/running_ssh_service/" rel="noreferrer">SSH Daemon Service</a>. 
  But I want to run on Centos6.4. So I setup from official centos image with almost same istruction.
  Then I connect to centos sshd server, but connection is closed immediately.
  Here is the message.</p>
  
  <pre><code>ssh root@localhost -p 49164
  The authenticity of host '[localhost]:49164 ([127.0.0.1]:49164)' can't be established.
  RSA key fingerprint is 88:71:89:e5:30:91:78:5c:bf:cb:88:c2:5b:81:1a:b5.
  Are you sure you want to continue connecting (yes/no)? yes
  Warning: Permanently added '[localhost]:49164' (RSA) to the list of known hosts.
  root@localhost's password: 
  Connection to localhost closed.
  </code></pre>
  
  <p>Why I cannot connect centos sshd server?</p>