Research of Network Security System in Campus Network Based on the Multi-level Defense

The campus network security needs can not be satisfied, if we only make use of one-sided Measures to deal with it. As the campus network has some characteristics, such as the openness and diversity. At present, there is an urgent need to establish a comprehensive, multilevel information security protection system. This paper analyzes the campus network security threats in the vocational colleges, and expounds the multi-layered defense structures on the campus network security system.