Can´t access Kaltura from outside the server


We have recently deployed a Kaltura 5.0 CE on an Ubuntu 12.04 server virtual machine (with virtualbox).
Testing the installation from within the guest server everything works fine, but if we try to access Kaltura from another machine in our LAN it just returns the index page of the Apache server at /var/www/

We have the virtualbox network configured as NAT with port forwarding on port 80

At the hosts file we have added localhost

So, if we access to from the ubuntu VM server, the start page of Kaltura is shown, but if we access from outside (from the host machine or any other machine on the LAN), it shows the Apache “It works” page.

Thanks for your help!!