[TriLUG] ATT gigabit internet quick review

[Wes Garrison via TriLUG]

Thanks for pointing that out, David.

Sorry, I meant that TWC/Charter doesn't limit your ability to use
nameservers of your choice, but I think I was answering the wrong question.

I also use Google's nameservers, or Verizon's old Level3 DNS (4.2.2.2 and
4.2.2.1).  OpenDNS (208.67.222.222 and 208.67.220.220) is another
alternative, but some people feel that it messes with DNS too much, similar
to the problems discussed above.

I have found TWC DNS servers to be slow and unreliable in the past (often
went down for hours at a time) but have had fewer problems with them
recently.

-Wes



_________________________________
Wesley S. Garrison
Network Engineer
Xitech Communications, Inc.
phone:  (919) 260-0803
fax:       (919) 932-5051
__________________________________
"Lead us not into temptation, but deliver us from email."

On Mon, Dec 5, 2016 at 12:37 AM, David Burton <ncdave4life at gmail.com> wrote:

> TWC has been doing this for a long time. That's why I've configured my
> router to use Google's nameservers (8.8.8.8 and 8.8.4.4).
>
> *C:\>nslookup insert-bogus-name-here.com
> <http://insert-bogus-name-here.com>*
> *Server:  google-public-dns-a.google.com
> <http://google-public-dns-a.google.com>*
> *Address:  8.8.8.8*
>
> **** google-public-dns-a.google.com
> <http://google-public-dns-a.google.com> can't find
> insert-bogus-name-here.com <http://insert-bogus-name-here.com>:
> Non-existent domain*
>
> *C:\>nslookup insert-bogus-name-here.com
> <http://insert-bogus-name-here.com> 209.18.47.62*
> *Server:  dns-cac-lb-02.rr.com <http://dns-cac-lb-02.rr.com>*
> *Address:  209.18.47.62*
>
> *Non-authoritative answer:*
> *Name:    insert-bogus-name-here.com <http://insert-bogus-name-here.com>*
> *Addresses:  198.105.244.228*
> *          198.105.254.228*
>
> *C:\>*
>
>
> Guess what you see when you go to http://198.105.244.228/ or
> http://198.105.254.228/? Advertising, of course, with the revenue going
> to TWC/Spectrum.
>
> Dave
>
>
>
> On Sun, Dec 4, 2016 at 10:58 PM, Wes Garrison via TriLUG <
> trilug at trilug.org> wrote:
>
>> I've never had Charter or TWC mess with DNS, but anything's possible
>> nowadays.
>
> *...[snip]... *
>
>> > > On Sun, Dec 4, 2016 at 10:15 PM, ac via TriLUG <trilug at trilug.org>
>> > > wrote:
>> *...[snip]... *
>> > > > For normal users though, ATT forcing only their own DNS servers
>> > > > means that the ATT service is not an "Internet" but an "Intranet"
>> > > > as ATT also answers for non registered (or not yet registered)
>> > > > domains, they can also decide to answer anything in any way they
>> > > > choose and normal users would not know.
>> > > >
>> > > > For example they could answer questions for insert-name-here.com as
>> > > > att.com, or just say "not found" - normal users would be clueless.
>> > > >
>> > > > When providers interfere and control the Internet egress to this
>> > > > degree
>> > > > - it is no longer an 'internet' (its like the Intranet in China
>> > > > where users also have to do some interesting routing to be able to
>> > > > have some temporary privacy)
>>
>
>