Re: MX Records for external domains not resolving properly

Thank you. The problem was resolved by changing a command in our firewall
to allow for EDNS0 packets.

Steve

"Ace Fekay [MVP]"
<PleaseSubstituteMyActualFirstName&LastNameHere@xxxxxxxxxxx> wrote in
message news:uPloM2SXFHA.3540@xxxxxxxxxxxxxxxxxxxxxxx
> Steve Mart wrote:
> > I have recently installed 2 new Windows 2003 DC's running as DNS
> > servers. These servers seem to function fine with the exception of
> > how they handle MX records of external domains. I can resolve A
> > record lookups fine, but when I try to locate the MX records in the
> > same external domains I get DNS request timed out messages.
> >
> > For example if I do the following commands:
> >
> >> Nslookup
> >> mx1.earthlink.net
> >
> > I receive the following:
> >
> > Server: dc03.ri.org
> > Address: 10.100.169.209
> >
> > Name: mx1.earthlink.net
> > Address: 209.86.93.226
> >
> > If I try to locate the MX records for the Earthlink domain by trying
> > the following:
> >
> >> set q=mx
> >> earthlink.net
> >
> > I receive DNS request timeout messages on my Windows 2003 servers.
> >
> > My 2 other Windows 2000 DNS servers have no problems resolving the
> > query properly. Any suggestions would be appreciated.
> >
> > Thanks.
> >
> > Steve
>
> You'll either want to disable the new EDNS0 feature or update your
firewall
> to support the new industry feature.
>
> 832223 - Some DNS Name Queries Are Unsuccessful After You Upgrade Your DNS
> Server to Windows Server 2003:
> http://support.microsoft.com/?id=832223
>
>
> --
> Regards,
> Ace
>
> Please direct all replies ONLY to the Microsoft public newsgroups
> so all can benefit.
>
> This posting is provided "AS-IS" with no warranties or guarantees
> and confers no rights.
>
> Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT, MVP
> Microsoft Windows MVP - Windows Server - Directory Services
>
> Paramount: What's up with taking Enterprise off the air??
> Infinite Diversities in Infinite Combinations.
> =================================
>
>


.

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