I have Ubuntu 11.10 with Lamp installed
There is some files that i can\'t access to from my web directory \"/var/www\"
http://localhost/banner/banner.html I
the user running the apache deamon, on ubuntu thats www-data (like in most debian based systems), needs at least read permissions for the files.
But as you posted only owner root and group root has read rights.
Actually owner root has rw group root has r.
So the user actually running the webserver (www-data) falls to the others permissions, which have none.
Either do a chmod -R o+r /var/www/banner/* or a chown -R www-data /var/www/banner to fix that.