INSTALLATION INSTRUCTIONS
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If on Ubuntu, besides the DocumentRoot,
you have to change the AllowOverride from None to All as well.
DocumentRoot /var/www/cydefsig/app/webroot/
Options FollowSymLinks
AllowOverride All
Options Indexes FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all
Find the original below, for reference.
DocumentRoot /var/www
Options FollowSymLinks
AllowOverride None
Options Indexes FollowSymLinks MultiViews
AllowOverride None
Order allow,deny
allow from all
Now /etc/init.d/apache2 restart
and you are done, and now able to use the application.