Sitefinder II, the sequel...

David Ulevitch davidu at
Tue Jul 11 08:23:04 UTC 2006

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

> On Mon, Jul 10, 2006 at 11:19:51PM -0700,
>  Steve Sobol <sjsobol at> 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.


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