Date Added: Jan 2011
The phenomenal growth of Internet has changed the way traditional essential services such as banking, transportation, medicine, education and defense are operated. In present era, the Internet is considered as main infrastructure of the global information society. Therefore, the availability of Internet is very critical. Distributed Denial-of-Service (DDoS) attacks pose an immense threat to the availability of these services. The services are severely degraded and hence a lot of business losses are incurred due to these attacks.