installing php5-fpm on Ubuntu Server 14.04 TLS LAMP stack

gistfile1.txt

Assuming that you're starting with a basic LAMP stack, first you need to install the needed packages:

sudo apt-get install libapache2-mod-fastcgi php5-fpm


Then create the file "/etc/apache2/conf-available/php5-fpm.conf" with the contents:

<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
</IfModule>


Then enable the new mods and config:

a2enmod actions fastcgi alias
a2enconf php5-fpm
service apache2 reload


You should be up and running. To verify, create a file called "/var/www/html/info.php" with the contents:

<?php
phpinfo();
?>

You may also need to switch from the apache MPM non-threaded module mpm_prefork to a threaded one.

a2dismod mpm_prefork

then

a2enmod mpm_worker
or
a2enmod mpm_event

If it's not installed:

apt-get install apache2-mpm-worker
or
apt-get install apache2-mpm-event

ref:https://www.digitalocean.com/community/questions/apache-2-4-with-php5-fpm