• SHAMA ANJUM
• Dr. Chandrashekara S N

Distributed Denial Of Service (DDoS) attacks are major blitz that effect the computers, servers and internet from many years and many methods and theories were developed to not only detect but also to protect your system from these type of harm. nowadays application layer distributed deniel of service attack towards the major servers online application increases very fast and the users have to face great loss.These attacks make the response slow for every request of the user and make the users to wait for the long time for the demand which they make. many users make the demand for the service at the same time from different systems or sources creating a disturbance because of which the site becomes busy and request will not be fulfilled in the accurate time. To overcome these defects many schemes were developed but to build a strong defence system the synergism of mitigation and detection of strikes is required.

Application layer DDoS attacks, sketch data structure, intrusion prevention system

"Preventing Application Layer DDOS attack using Password Attack Resistance Protocol", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 6, page no.1205-1211, June 2020, Available :http://www.jetir.org/papers/JETIR2006509.pdf

"Preventing Application Layer DDOS attack using Password Attack Resistance Protocol", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 6, page no. pp1205-1211, June 2020, Available at : http://www.jetir.org/papers/JETIR2006509.pdf