Campus Network Environment, Network Security And Defense Research And Practice

With the continuous advancement of Educational Informationization, college network construction is increasingly larger, college the particular network environment faces tens of thousands of users, therefore the network security issues become more important. Campus network faces many attacks as other networks, not only from outside, more from the external users. Campus network most users are students, who have the large number, strong thirst for knowledge and stronger curiosity, moreover some students have a high level of network knowledge. This campus network will face greater risks. In this way, whether campus network is truly safe or not, have an important sense for the entire campus normal work. Therefore campus network security has its important significance to the maintenance of the normal teaching order of the entire campus.This dissertation uses the research ideas of theoretical analysis, practice proof, raising question, analysis of issues, problem solving. First, proceed from the present situation of research of the current campus network security problems at home and abroad, we have conducted in-depth study of network security threats and protective measures and campus network security technology. Then, take the Sichuan Institute of Architectural Technology campus network for example, through the analysis of the status of their network security, the paper reveals the problems faced by college campus network at the physical layer security, network layer security, system-level security, application layer security and management Security,proposed the construction of college building of network security objectives, content, and security defense system functions. On this basis, we designed the campus network security defense system of Sichuan Institute of Architectural Technology,proposed to build a unified management platform for network and information security,to resolve currently network security issues at this college as well as others, in order to improve work efficiency, reduce consumption of human resources and material resources to maintenance of campus network security. Finally, the paper discussed the concrete realization and test of key technology focuses on VLAN technology, authentication encryption, firewall technology and intrusion detection technology, and describes the network security system test results.This dissertation used instance methods, through the investigation, analysis of network security of Sichuan Institute of Architectural Technology, combined with the integrated use of security technology, we designed a set of network security program for Sichuan Institute of Architectural Technology. The program not only full discussed the network security theory involved, but also used some current new ideas and new methods. Through the actual operation of campus network proved that the program was successful. In addition, we hope that this article play a role in the reference to other universities and companies network security.