North American Network Operators Group
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Re: UDP packet/DNS server
- From: Matthew Petach
- Date: Mon Sep 28 00:25:54 1998
>
> Hello Nanog,
>
> I am trying get zone trasfer from a host, but it seems that because of
> firewals?, I can not get any record.
> They acknowelged that there is a host behind the firewalls but they claim
> it should not affect it. (I don't believe it.)
> But I don't know how to check/prove that if certain host can
> receive/send an UDP packet.
Zone transfers are handled via TCP, not UDP. See if you
can telnet to port 51 on their nameserver; if you can't
get a connection established, you won't be able to do
a zone transfer.
> TIA,
> Tatsuya
Matt
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