title: SailsJS on production - Error: listen EADDRINUSE
body: <p>I have a VPS server with CentOS and Apache server.</p>
  
  <p>But I want to run my node.js applications too. I am using sails.js
  This sails application is trying to listen to port 80 of specified host.</p>
  
  <p>Here is error (after sails lift running):</p>
  
  <pre><code>debug: Starting server in /var/www/user/data/nodeprojects/projectname...  
  info  - socket.io started
  debug: Restricting access to host: projectname.com  
  warn  - error raised: Error: listen EADDRINUSE
  warn:   
  warn: Server doesn't seem to be starting.  
  warn: Perhaps something else is already running on port 80 with hostname projectname.com?
  </code></pre>
  
  <p>What is the problem? Can I run both apache and nodejs servers on one server with one port (80)?</p>