Php – Apache: mod_passenger + mod_php

When I do the same grep of my config files, I get one line you didn't:

/etc/apache2/mods-enabled/dir.conf:3:          DirectoryIndex index.html index.cgi index.pl index.php index.xhtml index.htm

Make sure this line in /etc/php5/apache2/php.ini is set this way:

; Enable the PHP scripting language engine under Apache.
engine = On

If you change it, restart Apache:

sudo apache2ctl restart

sudo /etc/init.d/apache2 restart

This method uses your Linux distro's init scripts to restart the process. These scripts are run at boot time to start apache.

sudo apachectl restart

This method uses the apachectl control program. In almost every occasion I would recommend the use of apachectl the to maniuplate the apache daemon. You have finer grained control over how the process restarts (see graceful vs. restart), configuration validation options and a way to get status information.

The main difference between using the init scripts to restart apache and apachectl is that apachectl is specifically designed to allow administators to control apache whereas the init scripts are designed as a generalized way for Unixes to start processes after the kernel and init daeamon have been loaded.

EDIT: Unfortunantly, I have no idea how to address your issue with Rails or Phusion Passenger. Try looking through your Apache logs for clues.