[CentOS] Slightly OT: DNS -force client always use authoritative

Mon Dec 18 20:52:31 UTC 2006
Karl R. Balsmeier <karl at klxsystems.net>

Matthew Martz wrote:

>>Is there a specific way to set a name server so that clients are always
>>*forced* to use an autoritative name server?
>>UltraDNS and some others have mentioned little features they have, but
>>it only hints at the possibility that somewhere in the DNS spec.
>Are you trying to make sure that the clients do not use cached lookups? 
>If so you could use max-cache-ttl and max-ncache-ttl with a very low ttl
>like 1 second.  Although then you still have a problem with the client
>itself caching the lookup.
More such that the client can cache it, but not a 'server in between', 
*only* the authoritative box...  Hopefully that makes sense, i'm 
basically asking on behalf of our CTO and just mentioned your 
question...  The answer to which is yes, trying to not use cached 
lookups....  Trying to pick through the proposals and determine what it 
is they (ultradns and Savvis ITM features are relying on)...