AD DNS not resolving some sites

[eric romero]

Hi all

Just after upgrading from Windows2000 to windows2003 I have noticed that
some web sites are not accessible anymore, all work if the clinet do not use
the AD DNSs.

any known issue?

thx

 

[Bill Grant]

It could be EDNS0 . See KB 832223 .

 

[eric romero]

is not this supposse to be done by the root-hints?

It could also be forwarders not specified on your 2003 AD DNS. You would

want to specify your ISP's DNS servers. This way all DNS requests that your
AD DNS doesn't know about will be forwarded to your ISP's DNS, for example
web sites.

 

[ptwilliams]

You can use either or both.

One advantage of forwarding to the ISP is you can make use of their bigger,
faster cache.


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is not this supposse to be done by the root-hints?

It could also be forwarders not specified on your 2003 AD DNS. You would

want to specify your ISP's DNS servers. This way all DNS requests that your
AD DNS doesn't know about will be forwarded to your ISP's DNS, for example
web sites.