Countering Against Distributed Denial-Of-Service (DDOS) Attack Using Content Delivery Network
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United States of America Patent
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Issued Date -
Jun 3, 2010
app pub date -
Nov 23, 2009
filing date -
Dec 2, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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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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