resolver doesn't see resolv.conf changes
Dmitry Pryanishnikov
dmitry at atlantis.dp.ua
Sat Apr 8 18:30:34 UTC 2006
Hello!
On Sat, 8 Apr 2006, Ulrich Spoerlein wrote:
> Good idea, but this defeates the hierarchical purpose of DNS. Now my
> caching DNS is always querying the root DNS servers.
Sorry, but what kind of hierarchy does it defeat? If client's query
can't be satisfied from provider's DNS cache, and doesn't refer to
domain which is hosted on ISP, then provider's DNS server will make
first query to root DNS server, and then will walk down domain hierarchy
(e.g. .ua -> .dp.ua -> atlantis.dp.ua). So setting client's DNS to directly
query root servers defeats just the provider's DNS cache.
> And there might be ISPs who disallow outgoing DNS connections to
> somewhere else than their own DNS servers.
Not us ;)
Sincerely, Dmitry
--
Atlantis ISP, System Administrator
e-mail: dmitry at atlantis.dp.ua
nic-hdl: LYNX-RIPE
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