Path: utzoo!attcan!uunet!decwrl!ucbvax!CUNYVM.CUNY.EDU!PIRARD%vm1.ulg.ac.be
From: PIRARD%vm1.ulg.ac.be@CUNYVM.CUNY.EDU (Andr'e PIRARD)
Newsgroups: comp.protocols.tcp-ip
Subject: in-addr.arpa used?
Message-ID: <9010091715.AA05649@ucbvax.Berkeley.EDU>
Date: 9 Oct 90 14:54:01 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 48

Our name server, on a VM system, receives reverse mapping queries.
One reason found is mailing on Unix systems, that also produces other
strange requests (sendmail.mx on SunOS, see below).
I am wondering how many such requests will come from the Internet when
we will be connected.
So, my question is: how useful is it to ask our administrators
to implement their in-addr.arpa domains?
Is it usually done?

Andr'e PIRARD             SEGI, Univ. de Li`ege
B26 - Sart Tilman         B-4000 Li`ege 1 (Belgium)
pirard@vm1.ulg.ac.be  or  PIRARD@BLIULG11 on EARN/BITNET

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 Oct 90 15:49:11 +0100
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 with  TCP; Tue, 09 Oct 90 15:49:09 +01
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Date: Tue, 9 Oct 90 15:49:26 +0100
From: pirard@montefiore.ulg.ac.be (PIRARD ANDRE tel 4932 SEGI)
Message-Id: <9010091449.AA06469@rib1>
To: pirard@vm1.ulg.ac.be

datagram from 139.165.16.1 port 2013, fd 8, len 43
req: nlookup(17.8.165.139.in-addr.arpa) id 2 type=12
req: missed '17.8.165.139.in-addr.arpa' as '' (cname=0)
forw: forw -> 139.165.2.1 8 (53) nsid=80 id=2 3225ms retry 6 sec

datagram from 139.165.2.1 port 53, fd 8, len 43
send_msg -> 139.165.16.1 (UDP 11 2013) id=2

datagram from 139.165.16.1 port 2014, fd 8, len 42
req: nlookup(vm1.montefiore.ulg.ac.be) id 3 type=1
req: found 'vm1.montefiore.ulg.ac.be' as 'vm1.montefiore.ulg.ac.be' (cname=0)
req: answer -> 139.165.16.1 11 (2014) id=3 Local

datagram from 139.165.16.1 port 2015, fd 8, len 31
req: nlookup(vm1.ulg.ac.be) id 4 type=1
req: found 'vm1.ulg.ac.be' as 'vm1.ulg.ac.be' (cname=0)
req: answer -> 139.165.16.1 11 (2015) id=4 Local

datagram from 139.165.16.1 port 2016, fd 8, len 31
req: nlookup(vm1.ulg.ac.be) id 5 type=15
req: found 'vm1.ulg.ac.be' as 'vm1.ulg.ac.be' (cname=0)
req: answer -> 139.165.16.1 11 (2016) id=5 Local