title: how to detach from a docker container
body: <p>This problem is quite similar like <a href="https://stackoverflow.com/q/19688314/1381490">this</a>, but I am still having problems:</p>
  <p>I run a container with:</p>
  <pre><code>docker run -d CONTAINER
  </code></pre>
  <p>then I attach to it with</p>
  <pre><code>docker attach NAME
  </code></pre>
  <p>but I cannot exit it, not with CTRL-C, nor with CTRL-P + CTRL-Q (like suggested in the similar question above)</p>
  <p>I have to <code>kill -9 PID</code> to exit it...</p>
  <p>What am I doing wrong?</p>
  <h2>Info:</h2>
  <p>Docker version 0.6.7, build cb48ecc<br>
  Ubuntu 3.8.0-33-generic #48~precise1-Ubuntu</p>