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DOMAIN NAME RESOLUTION USING A DISTRIBUTED DNS NETWORK

机译:使用分布式DNS网络的域名解析

摘要

A distributed DNS network includes a central origin server that actually controls the zone, and edge DNS cache servers configured to cache the DNS content of the origin server. The edge DNS cache servers are published as the authoritative servers for customer domains instead of the origin server. When a request for a DNS record results in a cache miss, the edge DNS cache servers get the information from the origin server and cache it for use in response to future requests. Multiple edge DNS cache servers can be deployed at multiple locations. Since an unlimited number of edge DNS cache servers can be deployed, the system is highly scalable. The disclosed techniques protect against DoS attacks, as DNS requests are not made to the origin server directly.
机译:分布式DNS网络包括实际控制区域的中央原始服务器和配置为缓存原始服务器的DNS内容的边缘DNS缓存服务器。边缘DNS缓存服务器发布为客户域的权威服务器,而不是原始服务器。当对DNS记录的请求导致缓存未命中时,边缘DNS缓存服务器会从原始服务器获取信息并将其缓存起来,以用于将来的请求。可以在多个位置部署多个边缘DNS缓存服务器。由于可以部署无限数量的边缘DNS缓存服务器,因此该系统具有高度可伸缩性。所公开的技术可以防止DoS攻击,因为DNS请求不会直接发送到原始服务器。

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