Help Req: Name server discovery

Does anyone have suggestions for finding name servers?

After spending all morning running dig, I'm frustrated. For example,
I stumbled across "orange.rr.com", which contains name servers for
Time Warner Cable customers in Orange County California. But I don't
know what domain to use for TWC customers in Los Angeles County and I
don't know how to find out except to ask for name resolution on every
conceivable IP address in likely netblocks.

One might expect that a question posed to technical support or a
search of TW's web site might prove productive, but "No Joy".
Similarly: google, ask jeeves, yahoo, Etc.

If anyone can provide syntax /content for dig commands, or a script,
or anything else helpful, please post. Please do not limit to rr.com
name servers; any solution should work for a user-supplied specified
domain. I believe many people in this group would be interested.
--
buck

On Sat, 31 May 2008 10:48:33 -0700, buck wrote:

> Does anyone have suggestions for finding name servers?

Just look at the output of "ipconfig /all" on a nearby windows box using
DHCP and connected directly to the ISP.

On Sat, 31 May 2008 13:13:29 -0500, Dave Uhring <(E-Mail Removed)>
wrote:

>On Sat, 31 May 2008 10:48:33 -0700, buck wrote:
>
>> Does anyone have suggestions for finding name servers?
>
>Just look at the output of "ipconfig /all" on a nearby windows box using
>DHCP and connected directly to the ISP.

That returns 2 servers; both overloaded. I need something a lot more
thorough.
--
buck

On Sat, 31 May 2008 13:56:41 -0700, buck wrote:
> On Sat, 31 May 2008 13:13:29 -0500, Dave Uhring <(E-Mail Removed)>
> wrote:

>>Just look at the output of "ipconfig /all" on a nearby windows box using
>>DHCP and connected directly to the ISP.
>
> That returns 2 servers; both overloaded. I need something a lot more
> thorough.

A properly configured nameserver will not do recursion for any but its
defined clients. Good Luck.

buck wrote:
> Does anyone have suggestions for finding name servers?
>
> After spending all morning running dig, I'm frustrated. For example,
> I stumbled across "orange.rr.com", which contains name servers for
> Time Warner Cable customers in Orange County California. But I don't
> know what domain to use for TWC customers in Los Angeles County and I
> don't know how to find out except to ask for name resolution on every
> conceivable IP address in likely netblocks.
>
> One might expect that a question posed to technical support or a
> search of TW's web site might prove productive, but "No Joy".
> Similarly: google, ask jeeves, yahoo, Etc.
>
> If anyone can provide syntax /content for dig commands, or a script,
> or anything else helpful, please post. Please do not limit to rr.com
> name servers; any solution should work for a user-supplied specified
> domain. I believe many people in this group would be interested.
> --
> buck

Google open dns, or run your own dns like djbdnscache.