Redmine duplicate URL access / & /redmine - apache

Question

I managed to get my Redmine reachable at a example.org/redmine URL.
But actually, it's still reachable at example.org/
I can't manage to make it work only on the /redmine alias.
Here is my configuration
<VirtualHost *:80>
LoadModule passenger_module /usr/local/share/gems/gems/passenger-5.0.11/buildout/apache2/mod_passenger.so
<IfModule mod_passenger.c>
PassengerRoot /usr/local/share/gems/gems/passenger-5.0.11
PassengerDefaultRuby /usr/bin/ruby
PassengerUser apache
</IfModule>
DocumentRoot /var/www
PassengerAppRoot /var/www/redmine
RailsBaseURI /redmine
Alias /redmine /var/www/redmine/public
TransferLog "logs/redmine_acess_log"
ErrorLog "logs/redmine_error_log"
</VirtualHost>
When I enter example.org/zriogjqoerqgj I'd like to have the default ErrorDocument, not something hooked up by Redmine.

Answer 1

Add the Directory directive, for example:
<Directory /var/www/redmine>
Order allow,deny
Allow from all
Require all granted
</Directory>
And another one
<Directory /var/www>
Order deny,allow
Deny from all
</Directory>

Answer 2

Your Virtual Host shoud looks like this:
<VirtualHost *:80>
ServerName example.org
DocumentRoot /var/www
ErrorLog logs/redmine_error_log
<Directory "/var/www/">
Allow from all
Options -MultiViews
</Directory>
Alias /redmine /var/www/redmine/public/
<Location /redmine>
PassengerBaseURI /redmine
PassengerAppRoot /var/www/redmine
</Location>
<Directory /var/www/redmine/public/ >
Options Indexes ExecCGI FollowSymLinks -MultiViews
Order allow,deny
Allow from all
AllowOverride all
</Directory>
</VirtualHost>
I did this solution following the Passenger documentation