Abstract: A network system for providing an entertainment center in a virtual community includes a computer storage configured to store information about a user, a server configured to support a web user interface on a remote computer device. The web user interface includes an entertainment center including a screen configured to display an image, and one or more seats to be seated by one or more avatars while they watch the image on the screen and a mechanism adapted to control the display of the image on the screen. At least one of the one or more avatars is associated with the user.

Abstract: A network information security zone joint defense system is provided, which monitors a network connection status through a network defense appliance. Once the network defense appliance detects a user computer in a network system triggering the conditions of a network zone joint defense, the network defense appliance immediately and automatically connects to a specified network switch, such that the network switch interrupts the network access service provided for the user computer, so as to effectively prevent virus or hacker from continuing spreading virus to the same or other subnet of the network, and further prevent the virus from starting a DDoS attack or paralyzing the network server, and thus greatly reducing the damages and losses to the network system.