Zero-Configuration Personal Firewall for DLNA DMS

When the DLNA products join the intranet of the home network, the attack from the internet will follow before one knows it. This paper will propose a design of a personal firewall for the Digital Media Server (DMS) providing the DLNA services. Unlike traditional firewall, the access control list of this firewall can be easily configured and updated. The key concept of the design is to mimic the contact list used in the instant messaging system. If a Digital Media Controller (DMC) is added to the contact list of the DMS, this DMC can control and manage the media in the DMS. Also the DMS can reject the accessing of a DMC on the contact list by temporarily blocking.