How to Resolve external names without timeout on reverse lookups
Barry Margolin
barmar at genuity.net
Wed Dec 19 15:21:18 UTC 2001
In article <9vpt63$jpn at pub3.rc.vix.com>,
Sommariva Graziano <Graziano.Sommariva at elsag.it> wrote:
>For historical and histerical reasons we have many IP classes in the
>internal network that are in the External ip range.
>
>If I instruct internal ROOT DNS servers to forward to external DNS server to
>resolve the "REST of the world" I risk to get many timeouts whenever an
>INTENAL" host belonging to public "IP-Range" telnets to a host requesting
>the reverse ip address.
>
>I though to declare my internal root-DNS servers as primary all possiblie
>in-arpa zones present on my network.
That's probably the best solution. Any address ranges you're using
internally should have reverse DNS zones on your internal DNS servers.
--
Barry Margolin, barmar at genuity.net
Genuity, Woburn, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
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