apt-get update apt-get install git-core gcc autoconf make apt-get install php5-dev php5-mysql Now clone the phalcon git repository git clone git://github.com/phalcon/cphalcon.git cd cphalcon/build Run the install file: ./install Once installation completed, you can see output messages Installing shared extensions: /usr/lib/php5/20131226/ Installing header files: /usr/include/php5/ Now edit your php.ini file for enabling phalcon nano /etc/php5/apache2/php.ini Add the phalcon extension at the end of the file: extension=phalcon.so Restart apache to make changes effect service apache2 restart Create a info.php file under your document root and paste the line <?php phpinfo(); ?> Run the info.php in web browser. Search for the keyword 'phalcon' in the resultant page. If you are finding it phalcon has been successfully configured. Otherwise you need to enable the module. cd /etc/php5/mods-available touch...