title: Apache 2.4 Error: FCGI: attempt to connect to Unix domain socket /run/php/php7.0-fpm.sock (*) failed
body: <p>I have updated my working Froxlor installation to PHP 7. 
  All my customer-sites work perfectly fine (with PHP 7 via FPM). </p>
  
  <p>The only problem is, that if I want to access the Froxlor Backend, I get an Erorr 503. 
  The apache Error-Log says:</p>
  
  <pre><code>`[Tue Oct 11 10:01:04.067069 2016] [proxy:error] [pid 23949] (2)No such file or directory: AH02454: FCGI: attempt to connect to Unix domain socket /run/php/php7.0-fpm.sock (*) failed`
  `[Tue Oct 11 10:01:04.089648 2016] [proxy_fcgi:error] [pid 23949] [client xx.xx.xx.xx:1819] AH01079: failed to make connection to backend: httpd-UDS`
  </code></pre>
  
  <p>The Error-Log of PHP-FPM says nothing. </p>
  
  <p>The same thing happens, if I try to access the server directly via IP.</p>
  
  <p>System-Details:</p>
  
  <ul>
  <li>Debian 8</li>
  <li>Apache 2.4</li>
  <li>PHP7</li>
  <li>PHP7-FPM</li>
  </ul>
  
  <p>Where I have to serach for the Problem? If needed, config-files can be provided.</p>