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Distributed Denial of Service Mitigation
,
M.Sc. Thesis
Sharif University of Technology
;
Kharrazi, Mehdi
(Supervisor)
Abstract
Denial of service (DoS) attacks is the main challenges of service providers due to their purpose to makes their service unavaillable. Nowadays this attacks are changed from centralized to distributed (DDoS) by means of botnets. In addition botnets allow attackers to launch attack on higher layers of network, such as application layer. In new application layer DDoS attacks, attacker send HTTP requests to waste victims resources. In addition, attacker can start attack during flash crowd event which makes attack more undetectable. In this research, in order to migigating such attacks, we introduced a method based on user’s history.
This history consist of user’s request rate for each...
This history consist of user’s request rate for each...