title: how do I start a memcache server
body: <p>I was installing the memcache at this 
  <a href="https://www.digitalocean.com/community/articles/how-to-install-and-use-memcache-on-ubuntu-12-04" rel="nofollow">manual</a> 
   . But I got a error after</p>
  
  <pre><code>echo "stats settings" | nc localhost 11211
  </code></pre>
  
  <p>error</p>
  
  <pre><code>localhost [127.0.0.1] 11211 (?) : Connection refused
  </code></pre>
  
  <p>I found several an answer, but they don't work such as </p>
  
  <pre><code>/etc/init.d/memcache start | restart
  </code></pre>