sudo apt-get install apache2-mpm-worker
sudo apt-get install libapache2-mod-fastcgi php5-fpm
sudo a2dismod php5 mpm_prefork
sudo a2enmod actions fastcgi alias mpm_worker
sudo touch /usr/lib/cgi-bin/php5.fcgi
sudo chown -R www-data:www-data /usr/lib/cgi-bin
sudo nano /etc/apache2/conf-available/php5-fpm.conf
<IfModule mod_fastcgi.c> 
   AddHandler php5.fcgi .php 
   Action php5.fcgi /php5.fcgi 
   Alias /php5.fcgi /usr/lib/cgi-bin/php5.fcgi 
   FastCgiExternalServer /usr/lib/cgi-bin/php5.fcgi -socket /var/run/php5-fpm.sock -pass-header Authorization -idle-timeout 3600 
   <Directory /usr/lib/cgi-bin>
       Require all granted
   </Directory> 
</IfModule>
sudo a2enconf php5-fpm
sudo service apache2 restart && sudo service php5-fpm restart