[19823] in North American Network Operators' Group
Re: UDP packet/DNS server
daemon@ATHENA.MIT.EDU (Mathias Koerber)
Mon Sep 28 10:38:02 1998
Date: Mon, 28 Sep 1998 12:38:43 +0800 (SST)
From: Mathias Koerber <mathias@staff.singnet.com.sg>
Reply-To: mathias@staff.singnet.com.sg
To: Matthew Petach <mpetach@netflight.com>
cc: Tatsuya Kawasaki <tatsuya@giganet.net>, nanog@merit.edu
In-Reply-To: <199809280411.VAA22613@falcon.netflight.com>
On Sun, 27 Sep 1998, Matthew Petach wrote:
| Date: Sun, 27 Sep 1998 21:11:32 -0700 (PDT)
| From: Matthew Petach <mpetach@netflight.com>
| To: Tatsuya Kawasaki <tatsuya@giganet.net>
| Cc: nanog@merit.edu
| Subject: Re: UDP packet/DNS server
|
| >
| > 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
That's port 53...
| get a connection established, you won't be able to do
| a zone transfer.
|
| > TIA,
| > Tatsuya
|
| Matt
|
Mathias Koerber | Tel: +65 / 471 9820 | mathias@staff.singnet.com.sg
SingNet NOC | Fax: +65 / 475 3273 | mathias@koerber.org
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