| With the widespread use of virtualization and cloud computing,traditional firewalls have been unable to meet the needs,so virtual firewalls are beginning to be widely used.In recent years,the number of users of this cloud resource management platform has gradually increased,the traffic volume of network exports has increased significantly.Therefore,it is important to ensure the security of user information and provide users with more secure cloud resource services.Based on the above background,it is necessary to provide a virtual firewall function for the user,so that the user can obtain satisfactory security.Based on the business scenario of this virtual firewall subsystem,this thesis analyzes the subsystems' requirements,designs and implements,and completes the architecture design,functional design,database model design,interface design and implementation.In the process of subsystem development,Mybatis is used as the persistence layer framework,Zookeeper and Dubbo are integrated with Spring,and RESTful programming style is selected to make the subsystem can be developed efficiently,maintained at low cost,and has the characteristics of high performance and high stability.And during this development process,I mastered the key technologies needed for development and learned the general process of software development.In the actual use of subsystems,it is a challenging task to determine a cost-effective virtual firewall deployment solution.In the subject,a queuing theory model for studying the efficiency of virtual firewalls is proposed.This model can simulate the deployment of virtual firewalls,so that a more cost-effective virtual firewall deployment scheme can be obtained.The virtual firewall subsystem provides high security for all users of the cloud resource management platform,which not only makes this platform provides users with safe and reliable services,but also greatly enhances the company's competitiveness. |
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