一种高效的DNS重定向实现方法

An Efficient Implementation Method of DNS Redirection

域名系统(Domain Name System,DNS)为互联网应用提供域名解析服务,是互联网最重要、最基本的服务之一。互联网服务提供商(Internet Service Provider,ISP)一般都会提供自建的DNS系统供本网用户使用;然而,因终端设备所使用的DNS服务器地址,受控于用户,这就可能导致DNS解析不受控且跨网。如何高效地使用DNS重定向技术,将域名解析在网内完成,对于运营商具有重要的现实意义。在分析传统DNS重定向实现方式及其缺陷基础上,提出了基于IP透明技术(IP_TRANSPARENT)实现高效的重定向方法。通过对比实验验证,证明所提出方法的优越性。

DNS(Domain Name System)provides domain name resolution service for Internet applications,which is one of the most important and basic services of the Internet.ISP(Internet Service Provider)generally provides self-built systems for local users.However,the DNS server address used by the terminal device is controlled by the user,which may cause the DNS resolution to go out of the local carrier network.How to efficiently resolve domain names within the local carrier network through DNS redirection has important practical significance for operators.Based on the analysis of the implementation and defects of traditional DNS redirection,an efficient redirection method based on IP_TRANSPARENT is proposed.The superiority of the proposed method is proved by comparative experiments.