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http://dx.doi.org/10.3745/KIPSTC.2003.10C.3.253

An Analysis of Network Traffic on DDoS Attacks against Web Servers  

Lee, Cheo-Iho (아주대학교 정보통신전문대학원 정보통신공학과)
Choi, Kyung-Hee (아주대학교 정보통신전문대학원)
Jung, Gi-Hyun (아주대학교 전자공학부)
Noh, Sang-Guk (가톨릭대학교 컴퓨터정보공학부)
Abstract
This paper presents the analytic model of Distributed Denial-of-Service (DDoS) attacks in two settings: the normal Web server without any attack and the Web server with DDoS attacks. In these settings, we measure TCP flag rate, which is expressed in terms of the ratio of the number of TCP flags, i.e., SYN, ACK, RST, etc., packets over the total number of TCP packets, and Protocol rate, which is defined by the ratio of the number of TCP (UDP or ICMP) packets over the total number of W packets. The experimental results show a distinctive and predictive pattern of DDoS attacks. We wish our approach can be used to detect and prevent DDoS attacks.
Keywords
DoS; DDoS; Web; Network Traffic;
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