Аннотация:As there is rapid advancement in the field of computer network and internet technology network security has become important issue.Many attacks are increasing day by day.An Intrusion Detection System (IDS) detects for any malicious activity in network and keeps alerts when detected.There is insufficiency of awareness of these attacks which are vulnerable to individuals, organization& agencies.[1] It is a need to understand the different types of attacks on network so as to take appropriate actions to mitigate it.[10] study of different types of cyber attacks its strategies and characteristics will help to develop a strong Intrusion detection system using some algorithms.
