Which nameservers am I using?

[Net Llama!]

On 05/29/2005 03:01 PM, Michael Hipp wrote:
> David Bandel wrote:
>> On 5/29/05, Michael Hipp <Michael at hipp.com> wrote:
>> 
>>>Net Llama! wrote:
>>>
>>>>207.191.50.10 is borked.  If i try to use it, i'm not gettting anything
>>>>back either.  Where did you get that one from?
>>>
>>>It's the one for the network this server will be attached to when it is
>>>delivered to the client. I presume it's only accessible internally.
>>>
>>>But that's not the point. Why does it just stop after the first one? Why not
>>>try all three listed servers?
>>>
>> 
>> 
>> Because the server didn't fail, _did_ reply (just not a usable reply).
>>  It didn't give a recursive lookup.  The IP you came from is probably
>> part of a view that has "recursive no;" as an option.
> 
> Ok. What I'm understanding is that remote machine that didn't want to answer 
> me in effect said "I'm not going to answer and you're not allowed to ask 
> anyone else either." Why does the algorithm allow such a thing? Why wouldn't 
> my nslookup/dig just keep going down the list until it got a usable answer 
> rather than slavishly obeying such an order?

No, that's not quite accurate.  The remote machine *did* answer.  Its 
answer was "i don't know".  Only if the remote machine failed to answer 
would you get passed to the 2nd in the list.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
L. Friedman                       	       netllama at linux-sxs.org
LlamaLand		 		http://netllama.linux-sxs.org

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