DDoSAttacks:Evolution,Detection,Prevention,Reaction,andTolerancediscussestheevolutionofdistributeddenial-of-service(DDoS)attacks,howtodetectaDDoSattackwhenoneismounted,howtopreventsuchattacksfromtakingplace,andhowtoreactwhenaDDoSattackisinprogress,withthegoaloftoleratingtheattack.I