| 摘要 |
PURPOSE: A device for preventing occurrence of denial attack of a distributed service is provided to correspond to various type of attache by blocking a service attack by recognizing the attach by types. CONSTITUTION: An attack prevention device(100) is connected to a terminal which can be communicated by the internet. The attach prevention device monitors whether an attack for denying a distribution service of the terminal communication data exists or not according to the preset reference. A monitoring center server manages a plurality of attack devices. By storing a DNS(Domain Name System) list inside the attack prevention device, a terminal which is not infected transmits their IP and a port number when requesting a connection to the attack target site. |
