Slightly OT: Using ISP's DNS server as forwarder with local caching dns server

[Ugo Bellavance]

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Hi,

	I was reading Sendmail's bat book and it was saying that it was better 
to use a "busy" DNS server, to make sure the entries don't time out.

	I run a caching name server (redhat's package, using bind) and I was 
wondering if I could get a benefit of having my ISP's DNS server as a 
forwarder.  From what I can understand, the forwarder will be used if my 
local server does not have the answer in the cache.  If my ISP has the 
entry in cache, it would be faster to retrieve it this way than doing 
the whole query by my local server.

	Any opinions?  Is that actually possible with the redhat package+edits 
or I'd need to configure bind manually to set the caching+forwarders to 
avoid conflicts?

Regards,
-- 
Ugo

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