DDoS attackS: Trends, Challenges and Possible Solutions

Advancement in networking technologies brings the world together by introducing millions of innovative web applications such as WWW(World Wide Web) that give a common platform for all varieties of tasks like business, commercial, educational, health care, ministerial etc. Due to this rapid development and dependence on web application services their confidentiality, integrity and availability becomes a target of several security threats. DoS attack is constantly evolving security threat to web service availability. DoS exploit vulnerability or sending huge amount of packets to exhaust available bandwidth of targeted host and to bring it down. In this paper a detailed study of DoS attack with their attack techniques is provided. Some DDoS attack incidents are discussed to analyze with their attack method and adopted solutions to understand the impact criteria of this attack. Some possible solution guidelines are provided with each discussed DDoS attack vector to mitigate the impact of attack.