From: "Rich" 

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   The traffic is gone and DNS is fine.  You must have seen the reports =
that 5 of the 13 root DNS servers were inaccessible because of network = traffic.

   And I don't subscribe to your attitude toward the DNS cache.  I leave =
it running all the time and make use of IPCONFIG /displaydns to diagnose =
problems.  I do not see problems because of the cache and do benefit = from
the caching.

   It may interest you that the most significant DNS problem I have is =
with IPv6.  There are DNS servers which mishandle requests for IPv6 =
addresses and fail with internal errors or much worse incorrectly report =
that the name queried for does not exist.  The name doesn't exist error =
is cached by other DNS servers.  If you want an example, install IPv6 = and
try to access www.cdw.com.

Rich

  "Geo."  wrote in message =
news:3e389520$1{at}w3.nls.net...
  "Rich"  wrote in message news:3e3789b3{at}w3.nls.net...

  >   It may be that some folks were having DNS problems that they =
mistook for
  site problems.  I had problems with DNS lookups for a while and =
couldn't
  resolve names to addresses.<

  Have you tried stopping the dns client service just as a test?

  Geo.


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   The
traffic is gone and =
DNS is=20
fine.  You must have seen the reports that 5 of the 13 root DNS = servers=20
were inaccessible because of network traffic.
 
   And I
don't subscribe to =
your attitude=20
toward the DNS cache.  I leave it running all the time and make use = of=20
IPCONFIG /displaydns to diagnose problems.  I do not see problems
= because=20
of the cache and do benefit from the caching.
 
   It may
interest you that =
the most=20
significant DNS problem I have is with IPv6.  There are
DNS = servers=20
which mishandle requests for IPv6 addresses and fail with internal = errors or=20
much worse incorrectly report that the name queried for does not =
exist. =20
The name doesn't exist error is cached by other DNS servers.  If =
you want=20
an example, install IPv6 and try to access www.cdw.com.;">http://www.cdw.com">www.cdw.com.;
 
Rich
 

  "Geo." <georger{at}nls.net>">mailto:georger{at}nls.net">georger{at}nls.net>
wrote=20
  in message news:3e389520$1{at}w3.nls.net..."Rich"=20
  <{at}> wrote in message news:3e3789b3{at}w3.nls.net...=
>  =20
  It may be that some folks were having DNS problems that they mistook=20
  forsite problems.  I had problems with DNS lookups for a =
while and=20
  couldn'tresolve names to
addresses.<Have you tried =
stopping the=20
  dns client service just as a=20
test?Geo.

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