Remote Denial of Service Attacks and Countermeasures

摘要: As evinced by a series of high profile attacks, denial service (DoS), or prevention legitimate access to resources, is threat that demands attention. Of particular concern are distributed in which an adversary recruits several computers aid the attack. The first major (DDoS) attack brought down University Minnesota’s network for three days August 1999. About six months later, Canadian teenager on sights including Yahoo, Amazon, eBay, CNN, and Buy.com made headlines. In accord with underlying principle destruction simpler than construction, attacks come many forms easy carry out, but preventing them can sometimes be tricky. Although there no panacea all flavors service, countermeasures focus either making more difficult attacker accountable via logging tracing.