International Journal of Engineering Sciences & Research Technology (IJESRT)
Security is demand of today's internet users. As the no. of internet users are increasing day-by-day it is being a paramount task to provide a network security. In the field of security NIDS acts as war horses. These NIDS are nothing but the software's that are used to detect the network attacks. In this paper, the authors are providing the technique that will detect the network attack without having any previous knowledge about the attack. This technique will be proved as the milestone in NIDS as these systems are useful in detecting the attacks in completely unsupervised manner.