Research And Design On Security Defense System Of Campus Network In Higher Vocational Colleges

Nowadays,computer technology and network technology changes rapidly,The application of campus network has penetrated into all aspects of the normal operation of colleges,which bring great convenience to college teachers and students for working and studying.University campus network along with the rapid development of information technology,the construction scale is constantly expanding,the application scope of faculty and students’ life.Because of the characteristic of the information sharing of computer network,the security issues of campus network become serious.In the process of application,the campus network is often influenced by the network intrusion and security threats of network virus,important data loss occurs,the phenomenon such as network paralysis,to the campus network users and network management personnel to bring a lot of trouble and increase a lot of work pressure.Therefore it has become the most fundamental goal of the campus network construction and management to deploy a safety campus network environment in order to ensure the stability and efficiency of the operation and meet the college office all staff.In our work,we detailedly investigated network security principle and security technology,and studied security-defense of campus network.This research result is based on the campus network security construction of Lanzhou Petrochemical College in Gansu province.Simultaneously we referred to a large number of literatures and books.We fully analyzed the hidden dangers and problems of campus networks based on Lanzhou Petrochemical College network,and got our first insight into some problems based on the campus network security in application and management aspect.Learning from others’ experience,we proposed some solutions for our current network security problems,which are about internet and intranet security-defense according to our current campus network.In the end,we successfully designed security-defense systems,carried out a network topology structure of campus network for application requirements.The security-defense systems are about deployment and configuration of firewall and intrusion prevention.On the other hand,we separated WLAN radiation region in order to provide a perfect preventive measures.In this way,we can lift all kinds of threats in network security to ensure a good function security of campus network.lastly,we will provide a perfect platform for education teaching,administrative management activities,information communication and resource sharing.