[54152] in North American Network Operators' Group
Re: lists of DNS servers by region.
daemon@ATHENA.MIT.EDU (Stephen Sprunk)
Wed Dec 11 11:37:55 2002
From: "Stephen Sprunk" <ssprunk@cisco.com>
To: "Tatsuya Kawasaki" <tatsuya@kivex.com>,
"nanog ml" <nanog@merit.edu>
Date: Wed, 11 Dec 2002 10:21:45 -0600
Errors-To: owner-nanog-outgoing@merit.edu
Tatsuya Kawasaki wrote:
> Many web sites which are mulihome/mult co-located seem to act
> differnetly depend on which DNS severs that we use.
>
> Questions:
> 1. Does anyone have lists of DNS servers by region to may optimize the
> path?-- of course it may depend on the network topology ...Assume that
> If ISP is fully messed with others.. ie Teir I provider for exmaple.
>
> 2. what is the typical of method they(web hosts) used to decide
> which one to give?
Many DNS "load balancing" solutions will return the address of the web
server closest to the _query source_. This means these systems work best
when your recursive DNS servers are topologically closest to your users.
S
