Originally Posted by
Rudolf Meier
You have to correct the setting for the dns forewarding. Alltough it should
not have such an influence (as mentioned by Bill and Ace) it still has...
the resolution is extremely slow, because your server always starts at the
root servers for every resolution. (we had the same problem after replacing
our dns server) ...
Often in the process of deploying a new server and DNS in an existing
environment, a bad DNS FORWARDER record gets left behind in your new DNS
server. The problem doesn't present itself until you decomission the old DNS
server. Your new DNS server is very slow with external DNS lookups because
it forwards requests to a DNS server that no longer exists. This process
eventually falls and finds and alternate DNS path for resolution.
To correct this problem look for and remove the "dead DNS forwarder" records
from your new DNS server.
Open the DNS manager,
right click on the DNS server and choose properties,
select the FORWARDERS tab,
remove and invalid DNS server forwarder records.
Resolution should be immediate without restart.
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