A method receives from a first server a first domain name system (DNS) request including a first internet protocol (IP) address of the first server, and a second IP address received by the first server from a first system. The method also maps a correlation between the first IP address and the second...http://www.google.es/patents/US7930429?utm_source=gb-gplus-sharePatente US7930429 - System and method for obtaining content from a content delivery network
System and method for obtaining content from a content delivery network
