在多出口局域网中合理配置策略路由实现了链路冗余，提高了内网用户访问Internet资源的速度。然而，该方法未能实现数据流的双向分配控制，外网用户访问内网资源的速度和可靠性难以保证。本文采用BIND软件实现域名的智能解析，满足按照请求者所在的网域对同一域名做出不同的解析。智能DNS结合NAT技术实现了数据流的双向分配控制，从而最大限度的提高了外网用户访问内网资源的速度。%In the multi-outlet LAN routing strategy to achieve a rational allocation of link redundancy, which improves network users to access Internet resources speed. However, this approach failed to achieve two-way data flow distribution control, speed and reliability within the extranet users to access network resources is not guaranteed. This paper puts forward that using BIND software achieve domain name intelligent analysis, in order to satisfy the domain requesters on the same domain to make a different parsing. Intelligent DNS NAT technology achieves a two-way combination of distribution control data flow, which maximize improves the speed of extranet users accessing network resources.
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