[AusNOG] MS Exchange issues with Telstra

[Noel Butler]

IIRC a couple of years ago, a few services admitted to doing this to
protect their customers by utilising malware domain blocklists forcing
NXDOMAIN on lookups to known phishers and so on, a good move, one I do
locally and have done so for many years now (non public networks
though), but I'd have no problem with it being done or doing it on
public networks if it meant stopping the average punter being ripped
off, or their machines infected with nasties - sadly though, there may
be providers who block/redirect 53 for less than moral reasons, and THAT
I strongly oppose. 

In the end DNS is DNS, the cool factor of using says google public DNS
or the like shouldnt come into it, since the queried servers should
return the same information - unless it prevents access to malicious
content as above, and it should only ever then NXDOMAIN it, or redirect
to say an RPZ type block information notice saying why its a prohibited
domain - it should NEVER be redirected to another working
(competitors/preferred) host/domain, or for spook purposes. 

On 06/03/2015 09:25, Eric Pinkerton wrote: 

> FWIW - From the Telstra 4G network (telstra.wap APN), I can query any DNS server I like.
> 
> I would expect that that any ISP who did filter queries to external DNS would be so deluged with support calls they would end up turning it of pretty quickly.
> 
> -----Original Message-----
> From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Alex Samad - Yieldbroker
> Sent: 06 March 2015 09:11
> To: Serge Burjak; Ben Cooper
> Cc: Ausnog at ausnog.net
> Subject: Re: [AusNOG] MS Exchange issues with Telstra
> 
> Hi
> 
> Not sure on the state of affairs in Aus, do we have common carrier laws or something like net neutrality. Is it legal for Telstra to limit you to their DNS servers and then potentially filter out what they don't want you to browse to, does that also leave them open to being sued if people get to places they shouldn't ?
> 
> A
> -----Original Message----- From: AusNOG [mailto:ausnog-bounces at lists.ausnog.net] On Behalf Of Serge Burjak Sent: Thursday, 5 March 2015 3:36 PM To: Ben Cooper Cc: Ausnog at ausnog.net Subject: Re: [AusNOG] MS Exchange issues with Telstra side note: telstra block using any DNS but their on NextG as well, had to
 make scripts to switch off DNS settings when using telstra. So Telstra
is providing a filtered internet service then? I'm not sure I could live
with that. Serge On 5 March 2015 at 14:31, Ben Cooper <ben at zeno.io>
wrote: 
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