apache nega a pasta específica do IP

Question

Eu tenho um apache no servidor Ubuntu, e eu quero DENY acesso por url direto para a pasta / website3 /

/var/www/html/
/var/www/html/website1/
/var/www/html/website2/
/var/www/html/website3/

http://191.122.32.50:80/            OK access by IP url
http://191.122.32.50:80/website1/   OK access by IP url
http://191.122.32.50:80/website2/  OK access by IP url
http://191.122.32.50:80/website3/ DENY by IP url, accept only via "website3.com"

I tried a lot of configurations, but does not work. I dont want fix it on PHP.

    <VirtualHost 191.122.32.50:80>
            ServerName website3.com
        DocumentRoot /var/www/html/website3      

        #HOW DENY http://191.122.32.50:80/website3/ 
        #BUT http://191.122.32.50:80/ allow; http://191.122.32.50:80/website1/ allow and http://191.122.32.50:80/website2/ allow
    </VirtualHost>

help? :) Im new on servers...