An Improved Stereo Network Security Defense System Based On PPDRR

Following the abroad application of computer internet technology, the security of internet is more important, as an opening system facing the people, computer internet is facing with the threaten and attack from different areas. So, building up the security system is very important problem. As an important infrastructure construction of universities, the campus network acts many roles as teaching, research, management and external communication etc. Campus network security impacts the teaching activities in universities directly. With the fast development of network on scale, it becomes the problem all universities have to face how to keep the internet work safely and effectively.The traditional security solution based on Anti-Virus Software or Computer Firewall has failed to satisfy the present security of campus network. According to the needs of the construction of Shandong Jianzhu University campus network, some new resolution to the problem of network security was proposed. First the author puts forward the stereo PPDRR model, which is dynamic, and in time adapting to the state change of network security. Based on that, the author puts forward the stereo defense system model for campus network.Finally, puts forward the stereo defense security system for campus network, it makes use of multiple security technologies synthetically; including the deployment of firewall, anti-virus strategy deployment, SSLVPN technology deployment, data backup, security management deployment, etc. To enable them not only play their own advantages, but also complement each other simultaneously. Multiple security technologies in the joint defense for campus network, which fully embodies the concept of stereo defense security system. This scheme is a comprehensive utilization of many network technologies and has a high adaptability, which will provide reference to the building of campus network for other universities.