I want to disable directory browsing of /galerias folder and all subdirectories
Index of /galerias/409 * Parent Directory * i126937298
Index of /galerias/409
* Parent Directory * i126937298
Apart from the aformentioned two methods (edit /etc/apache2/apache2.conf or add Options -Indexes in .htaccess file), here is another one
a2dismod autoindex
Restart the apache2 server afterwards
sudo service apache2 restart