named shows different results

[Rick Stevens]

On 06/29/2011 11:04 AM, Jorge Fábregas wrote:
> On 06/29/2011 01:26 PM, fedora wrote:
>> from the outside world, the new (correct) value is always returned.
>>
>> what could the problem be and how to avoid it?
> 
> You are viewing the contents of different caches.  Your internal "view"
> has a cache and your "external" view has another one (I assume you're
> using "bind views"). So, for example, if you do:
> 
> dig @127.0.0.1 whatever.com
> 
> ..you may not get the same result as:
> 
> dig @my-external-ip whatever.com
> 
> I don't know how's your bind setup but which cache you get will depend
> on the configuration you have.  If your views are separated based on
> destination ip (contrary to source ip) then you could place your
> external ip in your /etc/resolv.conf so that all responses to queries
> within your server match that of the external clients.  But then again,
> be careful on how you reference your server when using dig because as I
> mentioned, you'll get different results.

You might also check to see if you have nscd running on the machine and
if so, you might want to purge its cache: "nscd -i hosts".

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- Rick Stevens, Systems Engineer, C2 Hosting          ricks at nerd.com -
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