• Gagandeep Kaur
• Dr. Jaswinder Singh

Network Continuity is one of the most crucial part in today’s industry. Almost all the businesses around the world are using internet in one or other way. Availability of the network related applications are important as only authorized people can have access to those application at any time. DDoS attack is used to disrupt the availability of the business applications running over the internet. Over the time, applications related with cloud and IoT are increasing and more and more devices are connecting with the internet. These DDoS attacks are not only use for disruption of service availability, but also to steal data through the backdoor. These attacks are difficult to mitigate and is a big challenge to the organizations running web applications or Internet of Things. This paper includes various penetration testing tools for DDoS which can be used to make DDoS attacks. It also has some case studies included which shows some of the DDoS attacks made in recent years at large scale.

DDoS, TCP SYN Flood, ICMP Flood, Availability, Confidentiality, HTTP Flood

"DDOS ATTACKS AND NETWORK AVAILABILITY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.975-979, June 2019, Available :http://www.jetir.org/papers/JETIR1907283.pdf

"DDOS ATTACKS AND NETWORK AVAILABILITY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp975-979, June 2019, Available at : http://www.jetir.org/papers/JETIR1907283.pdf