Forbidden

You don’t have permission to access /galleries/ on this server.

 

Ubuntu 15.04
Apache/2.4.10 (Ubuntu)

Remove Apache version signature

nano /etc/apache2/conf-enabled/security.conf

On ServerTokens uncomment the line with ServerTokens Prod or add it.
Uncomment the ServerSignature Off entry or add it.

Remove PHP version from headers

I guess that by default they are disabled, but in any case you can remove it by editing the php.ini and set expose_php to off.

sudo nano /etc/php5/apache2/php.ini