DEFENSE AGAINST DISTRIBUTED DENIAL OF SERVICE ATTACK USING COLLABORATION BETWEEN ROUTERS
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Pulchowk Campus
Abstract
Denial of Service (DoS) attacks constitute one of the major threats and among the
hardest security problems in todays Internet. Of particular concern are Distributed
Denial of Service (DDoS) attacks, whose impact can be proportionally severe. With
little or no advance warning, a DDoS attack can easily exhaust the computing and
communication resources of its victim within a short period of time. Because of the
seriousness of the problem many defense mechanisms have been proposed to combat
these attacks. This thesis work has been carried out to prevent
ood based DDoS
attack in collaborative manner. Detection of anomaly tra c is being carried out with
exponential moving average and t-digest model which will calculate the extreme quantile
very accurately. In each
owing packet, identi cation eld has been modi ed so as to
have router identi cation which will then used to detect and drop the packet after
identi cation of attack.After detection of attack tra c at node near victim, the attack
information is being shared with other router and each router will act upon the attack
tra c so as to drop these packets at the node near the attack source.
Description
Denial of Service (DoS) attacks constitute one of the major threats and among the
hardest security problems in todays Internet.
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Citation
MASTERS DEGREE IN COMPUTER SYSTEM AND KNOWLEDGE ENGINEERING