title: Docker error dial unix /var/run/docker.sock: no such file or directory
body: <p>I use to have <code>boot2docker</code> installed but recently installed the Docker ToolBox app for the Mac (running 10.11). When I open up iTerm and type <code>docker ps</code> I get the following message. </p>
  
  <pre><code>Get http:///var/run/docker.sock/v1.20/containers/json: dial unix /var/run/docker.sock: no such file or directory.
  * Are you trying to connect to a TLS-enabled daemon without TLS?
  * Is your docker daemon up and running?
  </code></pre>
  
  <p>I use to use boot2docker so I assumed the ToolBox is now needed. I started the app <code>Docker quick start terminal</code> which works only inside their terminal. However, I want to use docker in my own terminal etc.</p>
  
  <p>Why do I get this error? How to fix?</p>