The Study of an Intrusion Detection Algorithm Model Based on Normal Distribution

The paper puts forward the basic theory and concept of intrusion detection and discusses the essential principle of intrusion detection technology, especially discusses the technology based on statistic model. At the same time, a basic structure of abnormal intrusion detection system has been designed in the paper. According to the probability theory, a new abnormal intrusion detection algorithm model based on normal distribution is also constructed. Comparing to others, the arithmetic model is simple implement, better operative and reliable. The arithmetic model is worth applying and popularizing.