摘要
Abstract
[Objective]The application of Policy-Based Routing to DNS system construction is stud-ied and the method of constructing safe and reliable DNS system is illustrated.[Method]From the network security, system security and BIND security aspects, the enhancement on the security and reliability of DNS is stated, and Policy-Based Routing technology is applied to the DNS construction .[Result]A method for constructing safe and reliable DNS system is illustrated. In the double ISP network environment,Policy-Based Routing is accomplished by cooperation of the router and DNS server, which can realize the function of Internet link redundancy, path optimization and domain name resolution redundancy.[Conclusion]The method can solve the security threats faced by DNS system and improve the reliability of the DNS system. Especially, the application of Policy-Based Routing can ensure the reliability and optimize the network performance.关键词
域名系统( DNS)/BIND/策略路由Key words
domain name system( DNS)/BIND/policy-based routing分类
信息技术与安全科学
