Cita: <VirtualHost *:80>
ServerName drk
DocumentRoot /srv/httpd/drk/testapp/public
PassengerRoot /srv/httpd/drk/testapp/public
RailsEnv development
<Directory /srv/httpd/drk/testapp/public>
PassengerEnabled on
AllowOverride all
Allow from all
Require all granted
</Directory>
</VirtualHost>
Asi está el httpd-vhosts.conf