Abstract:

In view of the problem that network security faces the threat of illegal intrusion and poor real-time defense, this paper designed a network information security management technology based on Intrusion monitoring. By adding intrusion monitoring module to the existing network model, the three modules of network information acquisition, information processing and information analysis were combined for intrusion monitoring. In order to improve the accuracy of intrusion monitoring, this paper used the decision tree method based on data dimension reduction to identify abnormal data, and effectively realizes different types of abnormal data monitoring. The system validation showed that the intrusion detection method proposed in this paper had a good monitoring effect for different types of intrusions, and had an improvement of more than 8% compared with the existing algorithms.

Key words: network security, intrusion monitoring, data dimension reduction, decision tree