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Contrary to this SO question this is for a dotted name (gw.localnet.au
), and it doesn't happen straight away. Only after some period of time (quite a long time, possibly days).
In fact this is for my ADSL router and its internal IP address which I have named within the router itself and in my Windows Server 2003 Domain Controller DNS Service. Specifically, localnet.au
is a Active-Directory-backed primary domain.
In fact, an ipconfig /flushdns
may fix the problem, but only after a while (about the time it took me to type in this question :-) ).
That doesn't explain the root cause though...
EDIT: My machine that is failing is Windows XP SP3.
Manually transferred from stackoverflow.com
I'm not surprised Windows caches the "does not exist" response for uses of DNS whereas nslookup explicitly interrogates the DNS server. (It would be nice if we had options to tell nslookup to use, clear and update the cache!) The use of the second DNS server shouldn't be the fault in my case as my second DNS server is the router itself. It knows its own name (of course) but under a different IP address. If that result was cached, I'd get pings and the auto-refreshed web site would display something other than an client-side error. – Mark Hurd – 2010-06-15T05:43:24.903
1nslookup uses its own DNS client, so the problem must be with the Windows DNS client. – paradroid – 2010-09-27T16:24:39.957