The Campus Network Security System Research

With the spread of Internet and the development of network construction in domestic universities, most colleges have set up their own campus network, which has become an important part of university informatization and played an important role in school education, management, scientific research, etc. But with the rapid expansion of the scale of the network, the increasing complexity of the network structure, and the continuous popularity and deepening of the key applications, the network security has become an unavoidable issue. That how to build a safe campus network system has become an important research topic.At first, this paper carefully studied the current network security technology, then analyzed the security status of campus network and raised the security needs basing on the problems appeared in the process of development of the campus network and the practice experience of the author when engaging in the network management. Then, taking the ISO security system structure as a guiding theory, it designed the campus network security system. This system meets the demand of campus network security from five aspects of physical security, network border security, core/convergence layer security, access layer security, security management. At last they put the campus network security system into effect, along with the corresponding security strategy, they made comprehensive use of different network security technology and products at all levels including firewall, VPN, many crossroads service balance system, identity authentication, network anti-virus system and so on; finally they realized the overall protection of campus network. Basing on the researches on the construction of campus network security and the in-depth analysis of the network security technology, this paper has strong feasibility and applicability, also reference value to other campus network construction.