[Systems] [Fwd: Reverse DNS for translate.sugarlabs.org]

[Bernie Innocenti]

Hello from Paraguay,

can we please add this reverse?

140.186.70.106	PTR	translate.sugarlabs.org


And as we're there, it would be nice if you could delegate the entire
classless subnet to us.

Instead of the more traditional "many glue records" kludge, I propose
adding the following few lines to the 70.186.140.in-addr.arpa zone file
(assuming you use BIND):

$GENERATE 100-129 $ NS ns1.sugarlabs.org.
$GENERATE 100-129 $ NS ns2.sugarlabs.org.
$GENERATE 100-129 $ NS ns1.codewiz.org.

; glue records for the above nameservers
ns1.sugarlabs.org.	A	140.186.70.102
ns1.sugarlabs.org.	AAAA	2002:8cba:4666::1
ns2.sugarlabs.org.	A	140.186.70.53
ns2.sugarlabs.org.	AAAA	2002:8cba:4635::1
ns1.codewiz.org.	A	83.149.158.210
ns1.codewiz.org.	AAAA	2002:5395:9ed2::1

This delegation technique, which I never personally tested, is described
here:

  http://homepages.tesco.net/J.deBoynePollard/FGA/avoid-rfc-2317-delegation-example-2.html

Rationale for preferring this method over the fancier one is here:

  http://homepages.tesco.net/J.deBoynePollard/FGA/avoid-rfc-2317-delegation.html


If delegation isn't viable, these are our current IPv4 mappings:

treehouse       A               140.186.70.100                  ; EXTREF
;-free-         A               140.186.70.101
lightwave       A               140.186.70.102                  ; bernie
;-free-         A               140.186.70.103
trixbox         A               140.186.70.104                  ; icarito
;-free-         A               140.186.70.105
pootle          A               140.186.70.106			; sayamindu
;-free-         A               140.186.70.107
template-karmic A               140.186.70.108                  ; bernie
beamrider       A               140.186.70.110                  ; bernie
ole             A               140.186.70.111                  ; chrowe
etherpad        A               140.186.70.112                  ; cjb
buildslave-ubuntu-lucid-amd64 A 140.186.70.115                  ; silbe 
;aslo-proxy     A               140.186.70.121                  ; dfarning, alsroot
aslo-web        A               140.186.70.123                  ; dfarning, alsroot
;aslo-db        A               140.186.70.125                  ; dfarning, alsroot

We also have corresponding AAAA records for 6to4, but I have no idea how
the reverse is supposed to work for those.

Our full zone file is available for reference here:

 http://people.sugarlabs.org/bernie/sugarlabs.org.zone


This is one reason why valid reverse records are desirable:

-------- Forwarded Message --------
From: Sayamindu Dasgupta <sayamindu at gmail.com>
To: Bernie Innocenti <bernie at codewiz.org>, Stefan Unterhauser
<dogi at laptop.org>
Cc: Chris Leonard <cjlhomeaddress at gmail.com>
Subject: Reverse DNS for translate.sugarlabs.org
Date: Thu, 11 Feb 2010 17:51:11 +0530

Hey guys,
Could you take a look at the reverse DNS for translate.sugarlabs.org ?
Apparently some mail hosts are rejecting our mails - here's a sample:

200A017FBA      909 Wed Feb 10 22:07:30  pootle at translate.sugarlabs.org
(host mail.squeakland.org[209.235.255.146] said: 451 Bad Reverse DNS.
(in reply to RCPT TO command))
                                         teefal at squeakland.org


Thanks,
Sayamindu



-- 
   // Bernie Innocenti - http://codewiz.org/
 \X/  Sugar Labs       - http://sugarlabs.org/