On Thu, Feb 4, 2010 at 5:08 PM, Franck Martin <franck.martin@gmail.com>wrote:
This seems to me, serving the purpose of only google and big companies. I though in these case they would use anycast (like the root servers) to provide answer from machines nearby.
That is correct. In fact the sole purpose of the protocol is to identify where you are via your IP number. And that is a marketing plus for big business. There are no technical advantages to the protocol other then for targeted marketing. regards joe baptista
I'm sceptical about this whole geolocation thing, because the topology of the Internet does not follow geography and euclidian distance. Often I'm referred to servers in New Zealand which are badly linked to me, while servers in the US are more available to me in Fiji. Australia is then second.
Also quid of IPv6?
----- Original Message ----- From: "Dev Anand Teelucksingh" <devtee@gmail.com> To: "At-Large Worldwide" <at-large@atlarge-lists.icann.org> Sent: Friday, 5 February, 2010 10:57:36 AM GMT +12:00 New Zealand Subject: [At-Large] Google Code Blog : A proposal to extend the DNS protocol
A proposal to extend the DNS protocol Wednesday, January 27, 2010
Today a group of DNS and content providers, including Neustar/UltraDNS and Google are publishing a proposal to extend the DNS protocol (http://www.ietf.org/id/draft-vandergaast-edns-client-ip-00.txt).
DNS is the system that translates an easy-to-remember name like www.google.com to a numeric address like 74.125.45.104. These are the IP addresses that computers use to communicate with one another on the Internet.
By returning different addresses to requests coming from different places, DNS can be used to load balance traffic and send users to a nearby server. For example, if you look up www.google.com from a computer in New York, it may resolve to an IP address pointing to a server in New York City. If you look up www.google.com from the Netherlands, the result could be an IP address pointing to a server in the Netherlands. Sending you to a nearby server improves speed, latency, and network utilization.
Currently, to determine your location, authoritative nameservers look at the source IP address of the incoming request, which is the IP address of your DNS resolver, rather than your IP address. This DNS resolver is often managed by your ISP or alternately is a third-party resolver like Google Public DNS. In most cases the resolver is close to its users, in which case the authoritative nameservers will be able to find the nearest server. However, some DNS resolvers serve many users over a wider area. In these cases, your lookup for www.google.com may return the IP address of a server several countries away from you. If the authoritative nameserver could detect where you were, a closer server might have been available.
Our proposed DNS protocol extension lets recursive DNS resolvers include part of your IP address in the request sent to authoritative nameservers. Only the first three octets, or top 24 bits, are sent providing enough information to the authoritative nameserver to determine your network location, without affecting your privacy.
Read full article : http://googlecode.blogspot.com/2010/01/proposal-to-extend-dns-protocol.html
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-- Joe Baptista www.publicroot.org PublicRoot Consortium ---------------------------------------------------------------- The future of the Internet is Open, Transparent, Inclusive, Representative & Accountable to the Internet community @large. ---------------------------------------------------------------- Office: +1 (360) 526-6077 (extension 052) Fax: +1 (509) 479-0084 Personal: http://baptista.cynikal.net/