A Survey on Intrusion Detection System

An intrusion detection system is a device or an application which monitor network, system activities for malicious activities, policy violations and also produces reports to a management station. This paper surveys proposed work on Intrusion Detection System and describe about comprehensive classification of various IDS approaches according to their employed detection technique. The main categories explored in this paper are anomaly detection, rule based intrusion detection and PCA based modular neural network. Thus the paper’s main aim is to include the most recent advancement in the area intrusion detection system as well as predict the future course of research.