DNS: Faster data access with location information

DNS: Faster data access with location information

Various providers of content delivery networks (CDN), in collaboration with OpenDNS and Google with a proposed extension of the domain name system (DNS), will end up faster than the content from content delivery networks for surfers. The current project is titled The Global Internet speedup summarized his proposals in an Internet-Draft.

In detail, recursive DNS resolvers around the access provider via a DNS extension called EDNS-client-subnet pass location information about their location to other DNS servers - according to the proposal should it be shortened to 24-bit IPv4 address that references to the location of the sender's network is to betray. With this information, selects a requested domain responsible for the DNS server (authoritative name server) from the nearest server in the content delivery network and sends back the IP addresses to the DNS client.

CDNs to distribute their server works throughout the world, so that for some Windows updates in Europe does not need to rely on servers in North America. Requests to be on the DNS server of the provider, for example, in an obvious server redirected to the access networks. If, however, a DNS services from Google or OpenDNS for name resolution, this method fails. Such diversions also collide with the DNA sampling DNSSSEC, the receiver can verify the DNS responses (Replys) the integrity of the message and the trustworthiness of the source by means of cryptographic data sent along.