[EXTERNAL] Charter DNS servers returning malware filtered IP addresses

Fri Oct 27 22:56:30 UTC 2023

> On Oct 27, 2023, at 14:20, John Levine <johnl at iecc.com> wrote:
> 
> It appears that Bryan Fields <Bryan at bryanfields.net> said:
>> -=-=-=-=-=-
>> -=-=-=-=-=-
>> On 10/27/23 7:49 AM, John Levine wrote:
>>> But for obvious good reasons,
>>> the vast majority of their customers don't
>> 
>> I'd argue that as a service provider deliberately messing with DNS is an 
>> obvious bad thing.  They're there to deliver packets.
> 
> For a network feeding a data center, sure. For a network like
> Charter's which is feeding unsophisticated nontechnical users, they
> need all the messing they can get.
> 
> If you're one of the small minority of retail users that knows enough
> about the technology to pick your own resolver, go ahead.  But it's
> a reasonable default to keep malware out of Grandma's iPad.
> 
> R's,
> John

If it’s such a reasonable default, why don’t any of the public resolvers (e.g. 1.1.1.1, 8.8.8.8, 9.9.9.9, etc.) do so?

DNS isn’t the right place to attack this, IMHO.

Owen