Böcker av K. Munivara Prasad

The Internet revolution has completely changed the traditional ways of functioning of essential applications including banking, healthcare, defense, academic, and logistics. Internet-based services replaced these traditional services at a rapid pace over the past two decades. Growth in internet-dependency of individuals and entities resulted that the internet is the fundamental support for the informationworld.The emergence of new Internet-based services such as e- governance, e-procurement, and other services are contributing significantly to the global, social and economic development. With the exponential growth in Internet-based services and users worldwide, the internet infrastructure and services are facing numerous challenges related to continuous attacks.Distributed Denial of Service (DDoS) is one of the most observed attacks over internet architecture, posturing robust challenges to defensemechanisms incorporated in the framework. As the DDoS attackinformation is not made public by companies (to avoid deterioration of brand value), researchers often face the problem of the limited information available to design effective defensive strategies against DDoS attacks. The current section presents the impact of DDoS attack and the inherent vulnerability of the internet architecture. Real events of DDoS attack together with their financial impact on companies are included. Further, the need for designing an efficient DDoS defense strategy is presented in the research work.The internet resources and network systems should be readily accessible for genuine users who aim to use the services at any specific time . Unavailability of internet services and applications at the required instance is one of the major challenges restricting the spread of Internet-based services. The unavailability can results to either intentional causes or accidental causes. The basic internet framework is designed to handle accidental failures but is not efficient against intentional purposes such as intrusion, malware, hacking, etc.The Denial-of-Service (DoS) attack is categorized under intentional failures observed on the internet, which are caused by malware programmers or intruders. These attackers deny or compromise the availability of internet resources to genuine or authorized users.