title: Can I use kafka over Internet?
body: <p>Is kafka suitable for Internet-use?</p>
  
  <p>More precisely, what I want is to expose kafka topics as "public interface", then external consumers (or producers) can connect to it. Is it possible?</p>
  
  <p>I hear there are problems if I want to use the cluster in both internal and external networks, because it is then hard to configure advertised.host.name. Is that true?</p>
  
  <p>And do I have to expose zookeeper as well? I think the new consumer/producer api no longer need that.</p>