I have noticed that I have the following lines in apache2.conf (on ubuntu 14.04):
<Directory /usr/share> AllowOverride None Require all granted </Directory>
And the reason for this is written as:
not allow access to the root filesystem outside of /usr/share and /var/www. The former is used by web applications packaged in Debian, the latter may be used for local directories served by the web server.
But this tells me absolutely nothing. Can someone explain in a plain English why do I need to grant access to this folder.