title: Redmine Apache Passenger error: Unexpected error in mod_passenger
body: <p>Error message given by Apache:</p>
  
  <pre><code>[ pid=26810 thr=140719191291712 file=ext/apache2/Hooks.cpp:862 time=2014-01-27 10:57:06.221 ]:
  Unexpected error in mod_passenger: Cannot connect to Unix socket
  '/tmp/passenger.1.0.25998/generation-0/socket': Permission denied (13)
  Backtrace: [Truncated...]
  </code></pre>
  
  <p>As a temporary fix, changing owner <code>apache:apache</code> of <code>/tmp/passengerXXX</code> solves the issue.</p>
  
  <p>But when restart apache, this directory is owned by root and error.</p>
  
  <p>Help me @@</p>