COUNTERING AGAINST DISTRIBUTED DENIAL-OF-SERVICE (DDOS) ATTACK USING CONTENT DELIVERY NETWORK

Title:

COUNTERING AGAINST DISTRIBUTED DENIAL-OF-SERVICE (DDOS) ATTACK USING CONTENT DELIVERY NETWORK

Document Type and Number:

WIPO Patent Application WO/2010/064799

Kind Code:

A3

Abstract:

Method and apparatus for blocking a distributed denial-of-service (DDoS) attack are provided. It is first determined whether a traffic status of an origin server is based on the DDoS attack. When it is determined that the traffic status of the origin server is based on the DDoS attack, a DNS is requested to change an Internet protocol (IP) address of the origin server to the IP address of at least one of plural servers. Accordingly, it is possible to accept a normal service providing request and also to determined and block the DDoS attack. In addition, since a device for determining and blocking the DDoS attack need not be installed in each site or server, it is possible to efficiently determine and block the DDoS attack at reduced cost.

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Inventors:

NA WON-TAEK (KR)
BAEG HYEONG-SEONG (KR)
BYUN CHOON-HWAN (KR)
LIM JEONG-WOO (KR)
HAN HYO-SOO (KR)

Application Number:

PCT/KR2009/006845

Publication Date:

August 19, 2010

Filing Date:

November 20, 2009

Export Citation:

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Assignee:

CDNETWORKS CO LTD (KR)
NA WON-TAEK (KR)
BAEG HYEONG-SEONG (KR)
BYUN CHOON-HWAN (KR)
LIM JEONG-WOO (KR)
HAN HYO-SOO (KR)

International Classes:

G06F21/00; G06F15/00; H04L12/24

Foreign References:

US7171683B2	2007-01-30
US7584507B1	2009-09-01

Other References:

YJ KWON ET AL.: "Study on Detection and Reaction of DDoS Attack : FDDS(Flow-based DDoS Detect ion System)", PROC. OF KIISC CONFERENCE 2002, vol. 12, 2002, pages 3-3-467
A. BA SHEER ET AL.: "Distributed packet pairing for reflector based DDoS attack mitigation", ELSEVIER COMPUTER COMMUNICATIONS, vol. 29, 2006, pages 2269 - 2280
DDOS ATTACKS ET AL.: "Measurement of DNS Traffic", PROC. OF THE SAINT-W'05, 2005

Attorney, Agent or Firm:

BAN, Jung-Hyuk (1363-2 Seocho-dongSeocho-gu, Seoul 137-070, KR)

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