We discuss distributed denial of service attacks in the Internet. We were motivated by the widely known February 2000 distributed attacks on Yahoo!, Amazon.com, CNN.com, and other major Web sites. A denial of service is characterized by an explicit attempt by an attacker to prevent legitimate users from using resources. An attacker may attempt to: “flood” a network and thus reduce a legitimate ...

Internet Denial-of-Service Considerations Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document provides an overview of possible avenues for denial-of-service (DoS) attack on Internet systems. The aim is to encourage protocol designers and network enginee...

Today, internet and web services have become an inseparable part of our lives. Hence, ensuring continuous availability of service has become imperative to the success of any organization. But these services are often hampered by constant threats from myriad types of attacks. One such attack is called distributed denial of service attack that results in issues ranging from temporary slowdown of ...

Providing live support over the Net is much cheaper than the 1-800 option since an operator can handle several chat sessions simultaneously. The downside of this approach, however, is that “the human in the loop” can now be a target of a new class of network attacks. Take a simple chat-bot program that connects to an online chat service. Smart it is not – an operator can tell it from a human af...