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Domain name resolution using a distributed DNS network

  • US 8,423,672 B2
  • Filed: 01/10/2012
  • Issued: 04/16/2013
  • Est. Priority Date: 07/19/2000
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • providing a plurality of domain name system (DNS) cache servers associated with a content delivery network service provider, the plurality of DNS cache servers caching DNS content from an origin DNS server associated with a customer of the content delivery network service provider;

    wherein DNS content comprises one or more DNS records;

    associating an IP address with at least a given one of the DNS cache servers, the IP address being published as the address of an authoritative DNS server for a domain name associated with the customer;

    receiving, at the given DNS cache server, a domain name resolution request from a client directed to the IP address associated with the given DNS cache server, the domain name resolution request seeking resolution of the domain name; and

    wherein the given DNS cache server obtains the DNS content needed by the given DNS cache server to answer the domain name resolution request from the origin DNS server.

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