North American Network Operators Group

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Re: Sitefinder II, the sequel...

  • From: David Ulevitch
  • Date: Tue Jul 11 04:24:09 2006

On Jul 11, 2006, at 12:09 AM, Stephane Bortzmeyer wrote:

On Mon, Jul 10, 2006 at 11:19:51PM -0700, Steve Sobol <[email protected]> wrote a message of 16 lines which said:

There's a big difference, of course, between INTENTIONALLY pointing
your computers at DNS servers that do this kind of thing, and having
it done for you without your knowledge and/or consent.

As Steven Bellovin pointed out, most OpenDNS users will not choose it: it will be choosen for them by their corporate IT department or by their Internet access provider.

Our preference system is designed around CIDR and the most specific prefix will win a lookup meaning a /32 settings are preferred over that of a /24.

A corporate network can have a policy changing that (aka, you are fired), but an ISP can't. The policies of IT departments and ISPs are not remotely comparable. This is a deliberate design choice.

As usual, ymmv.