Re: "who" is guilty - "named" is not!!!

["Jens B. Jorgensen" <jjorgens@bdsinc.com>]

Well, it looks as though we've all been wasting our time. A bug report
was filed for this 78 days ago:


Debian bug report logs - #10145
who does DNS lookups!

Package: shellutils; Reported by: Richard Kettlewell
<richard@greenend.org.uk>; dated Mon, 26 May 1997
16:33:03 GMT; Maintainer for shellutils is Galen Hazelwood
<galenh@micron.net>. 


Message received at submit@bugs.debian.org:


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From: Richard Kettlewell <richard@greenend.org.uk>
Message-Id: <8PzrwawF0.rjk@sfere.greenend.org.uk>
Date: Mon, 26 May 97 17:19:22 +0100 (BST)
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To: submit@bugs.debian.org
Subject: who does DNS lookups!
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Package: shellutils
Version: 1.16-1

who(1) attempts to look up machine names extracted from utmp in the
DNS.  Since these are usually truncated, the result is queries on
stupid domains; see below for an extract from named.run.

This is *very wrong* for a dialup system, where a DNS lookup can bring
up the dialup link and thus cost money.  There isn't even a
(documented) option to turn it off!

ttfn/rjk

datagram from [127.0.0.1].1568, fd 21, len 34; now Mon May 26 17:12:50
1997
ns_req(from=[127.0.0.1].1568)
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36019
;; flags: rd; Ques: 1, Ans: 0, Auth: 0, Addit: 0
;; QUESTIONS:
;;      portaloo.greenen, type = A, class = IN


;; ...truncated
req: nlookup(portaloo.greenen) id 36019 type=1 class=1
req: found 'portaloo.greenen' as 'portaloo.greenen' (cname=0)
wanted(0x807c450, 1, 6) [IN SOA]
finddata: added 1 class 1 type 6 RRs
ns_req: answer -> [127.0.0.1].1568 fd=21 id=36019 size=107 Local

datagram from [127.0.0.1].1569, fd 21, len 50; now Mon May 26 17:12:50
1997
ns_req(from=[127.0.0.1].1569)
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36020
;; flags: rd; Ques: 1, Ans: 0, Auth: 0, Addit: 0
;; QUESTIONS:
;;      portaloo.greenen.greenend.org.uk, type = A, class = IN


;; ...truncated
req: nlookup(portaloo.greenen.greenend.org.uk) id 36020 type=1 class=1
req: found 'portaloo.greenen.greenend.org.uk' as 'greenend.org.uk'
(cname=0)
findns: SOA found
req: leaving (portaloo.greenen.greenend.org.uk, rcode 3)
free_nsp: sfere.greenend.org.uk rcnt 1
ns_req: answer -> [127.0.0.1].1569 fd=21 id=36020 size=118 Local

datagram from [127.0.0.1].1570, fd 21, len 34; now Mon May 26 17:12:50
1997
ns_req(from=[127.0.0.1].1570)
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36021
;; flags: rd; Ques: 1, Ans: 0, Auth: 0, Addit: 0
;; QUESTIONS:
;;      portaloo.greenen, type = A, class = IN


;; ...truncated



Acknowledgement sent to Richard Kettlewell <richard@greenend.org.uk>:
New bug report received and forwarded. Copy sent to Galen Hazelwood
<galenh@micron.net>. Full text
available.

Report forwarded to debian-bugs-dist@lists.debian.org, Galen Hazelwood
<galenh@micron.net>:
Bug#10145; Package shellutils. Full text available.

Ian Jackson / owner@bugs.debian.org, through the Debian bug tracking
mechanism 
Last modified: 16:39:00 GMT Mon 26 May (timestamp page available). 

-- 
Jens B. Jorgensen
jjorgens@bdsinc.com


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