Patent ID: 6976090
Filing Date: 2005-12-13
Classification: G06F,H04L

Abstract:
1. A content and application delivery system comprising: an origin web site having an origin web server, said origin web server having a first memory for storing a first version of a web content; an edge server disposed in an external domain name zone communicating via a data network with said origin web server and a policy control server, said data network comprising a regional DNS server; said edge server having a second memory for storing a second version of said web content and deriving said second version from said origin web server according to directives of a service policy that resides at said policy control server, said edge server downloading said directives of said service policy from said policy control server via said data network; an edge DNS server linked to said regional DNS server, said edge DNS server being configured as an authoritative DNS server for said external domain name zone, said edge DNS server further being configured to cooperate with said regional DNS server to cause a request of a user for a URL within said origin web site requiring a DNS address resolution by said regional DNS server to be resolved so as to redirect said request to said edge server and to entirely avoid an access of said origin web site by said user, wherein responsively to said request a third version of said web content is provided to the user from said edge server, said third version being derived from said second version in accordance with said directives of said service policy.