North American Network Operators Group
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Re: Domain Name System protection

  • From: Joe Abley
  • Date: Mon Aug 16 10:16:37 2004 
On 16 Aug 2004, at 01:18, Bill Woodcock wrote:


2. How could we extend our server farm by adding new
servers while announcing the same IP addresses to our
customers?

By doing exactly that.  Sharing one IP address across many servers is
called "anycast" and is standard practice for DNS service provision.

See, for example:

  http://www.isc.org/pubs/tn/isc-tn-2004-1.html
  http://www.isc.org/pubs/tn/isc-tn-2004-1.txt

  http://www.isc.org/pubs/pres/USENIX/2004/usenix-isc-dns-dist.pdf
  http://www.isc.org/pubs/pres/USENIX/2004/usenix-dns-dist-pres.pdf


Joe