Research on Dynamic Monitoring and Defense Strategy of Illegal Access Risk of College Teaching Resources Based on Network Intrusion Detection System

Abstract

With the development of digitization of teaching resources in colleges and universities, the problem of illegal access has become increasingly prominent, interfering with teaching order and threatening data security. This study introduces network intrusion detection system, aiming to solve the problem of illegal access to university teaching resources platform. The study combs through the network intrusion detection system, illegal access risk and other related theories, analyzes the status quo of illegal access to teaching resources in universities, and discovers the relevant problems of existing risk monitoring and defense. To this end, a dynamic monitoring system based on network intrusion detection system is theoretically constructed, including layered architecture design, data acquisition and preprocessing, intrusion detection algorithm selection and optimization, and risk assessment model construction; at the same time, the defense strategy is formulated, access control is optimized, multi-factor authentication and the principle of least privilege are introduced, and the emergency response mechanism is set up and regularly practiced. The results of this research help to improve the security of teaching resources in colleges and universities and guarantee the normal development of teaching activities.