Design And Implementation Of Network Architecture And Security System For E·School Education Cloud Platform

With the development of education information and cloud computing, the major educational function of education cloud platform has been widely recognized by people. Meanwhile, in China’s newly launched Outline of Education Reform and Development Plan, the significance of cloud computing is given particular emphasis.In the development of education cloud platform, network infrastructure and network security is the basic guarantee of education cloud platform operation. However, there still lack standardized criteria and complete solutions to the problems in network construction of education cloud computing platform. Therefore, studies in these areas are very necessary.For this purpose, in this thesis, a network infrastructure and security system for elementary and middle education, named the E·School Education Cloud Platform, is developed and promoted. The research is supported by the Hebei Digital Education Collaborative Innovation Center, and based on a prior study on solutions to problems in network construction of current education cloud platform. Meanwhile, the research meets the practical need and development requirements of the E·School Education Cloud Platform.The main contributations of the research can be summarized as follows:(1) The network architecture of E·School Education Cloud Platform is designed.According to the actual needs of the three functional areas of the platform’s Infrastructure area, Application Development Platform area and Software service area,the network architecture of each functional area is designed; On the other hand, to meet the security requirements of the E·School Education Cloud Platform, the PDRR network security model is introduced and improved, and the network security architecture is set up with the core of the educational service as the core, which ensures the overall network security of the cloud platform.(2) In order to relieve the pressure of the access in the education cloud platform, aimproved algorithm which synthesis two load balancing algorithms including randomly distributed algorithm and dynamic allocation algorithm is implemented to achieve the purpose of reducing the pressure of server in this thesis. Meanwhile, the network traffic classification algorithm based on BP neural network is introduced and implemented. Through learning the features of the network traffic samples, a network model is generated, which can be used to classify the network traffic. Network traffic class can be used to detect network traffic.(3) An entire E · School Education Cloud Platform network infrastructure is constructed and the network security strategies are deployed. A comprehensive test is conducted to prove that the demands of current network can be met.The network infrastructure and security construction of E·School Education Cloud Platform can improve the stability of the platform, solve the problem of server concurrent access, shorten the response time of the user access,and improve the security of the whole platform.