[NTLUG:Discuss] OT - nslookup question

[MadHat]

On Sep 17, 2004, at 12:39 PM, fredjame wrote:
> Greg Edwards wrote:
>> fredjame wrote:
>>> Some times when I do an 'nslookup' I get the phrase 
>>> "Non-authoritative answer:" as part of the response.  I have not 
>>> been able to find this in the documentation as yet - does anyone 
>>> know what it means exactly?  Thank you in advance for any help you 
>>> may be able to offer.  (The nslookup command was issued from a Unix 
>>> box, but I believe the box it was looking for is probably MS - if 
>>> that means anything)
>>> Regards
>>> Fred James
>> Simply means that the answer came from a name server that knows the 
>> answer, but is not the name server that manages the domain asked 
>> about.
> I hope this isn't a silly question, but ... What is the possibility 
> that the "name server that knows the answer, but is not the name 
> server that manages the domain asked about" may be wrong?  Thank you 
> in advance for any help you may be able to offer.

It is just a cached answer, so it can be wrong.  Until the TTL expires 
and it looks up the answer from the authoritative server again, it 
could be different.