[AusNOG] Telstra redirecting failed DNS lookups

[Mark Caetano]

So would this still happen if you use a 3rd party DNS server or even  
run your own like I have?

On 20/11/2009, at 10:03 AM, Scott Howard wrote:

> On Thu, Nov 19, 2009 at 2:08 PM, Paul Foote <pfoote at gmail.com> wrote:
> All that's left for them to complete the "404" strategy is to put  
> transparent proxies in place that redirect on real 404's :P
>
> Did nobody learn the lessons from when Verisign did this with .com ?  
> baah.
>
> In fairness (and I use that term loosly) to BigPond, this is  
> probably a little different to what Verisign did.
>
> I haven't seen the BigPond details, but I have seen what Comcast are  
> doing on my US cable connection, and I presume BigPond is doing  
> something similar.
>
> The major differences between the two are :
> * Only responds for "www" addresses.  a lookup for "non- 
> existantdomain.com" will still return an NXDOMAIN, but "www.non-existantdomain.com 
> " returns their search page.  This means that (the majority of)  
> things like RBL/anti-spam/etc things which broke under Verisign's  
> redirection no longer break.
> * It's only home users. Business plans/etc are not redirected.   
> Obviously this is different to Verisign where everyone was hit.
> * You can turn it off, and the page you end up on even gives you the  
> details on how to turn it off.
>
> Also despite claims to the contrary, Comcast are not actually  
> "intercepting" DNS traffic - or at least they aren't for me.  They  
> are only doing this for traffic sent directly to their DNS servers,  
> and pointing to another DNS server works as expected, as does  
> running your own resolver.
>
>
> I'm still not saying that it's a good thing for them to be doing,  
> but it's not quite as bad or destructive as Verisign's move was...
>
>   Scott.
>
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~~~
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