[80410] in North American Network Operators' Group
Re: Schneier: ISPs should bear security burden
daemon@ATHENA.MIT.EDU (Nicholas Suan)
Sat Apr 30 05:59:11 2005
Date: Sat, 30 Apr 2005 04:57:11 -0500
From: Nicholas Suan <nsuan@nonexiste.net>
To: Suresh Ramasubramanian <ops.lists@gmail.com>
Cc: North American Networking and Offtopic Gripes List <nanog@nanog.org>
In-Reply-To: <bb0e440a0504291911c61d3f5@mail.gmail.com>
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Suresh Ramasubramanian wrote:
> On 4/30/05, Steven Champeon <schampeo@hesketh.com> wrote:
>
>
>>ANantes-106-1-5-107.w193-251.abo.wanadoo.fr
>>
>>You'll see 'abo' for 'cable', perhaps? as well as 'cable'. But for most
>
>
> abo = short for "abonnement", that is, "subscription" / "subscriber"
> Just means its a pool of IPs assigned to users, I guess.
>
>
>>Dunno. Don't have many examples of those, as I block most traffic from
>>there, and what I didn't block didn't often have rDNS anyway. The one
>>net.cn example I have, nova, named all of their rDNS with
>>user.nova.net.cn - yep, that's it - what every host is named.
>
>
> And there's a vietnamese ISP that was clever enough to give the same
> rDNS - "localhost" - to all their IP space. Don't know which one of
> the three ISPs there does this, but as APNIC 20 is in Hanoi, I'll most
> likely find that out for myself.
>
>
I was actually bored enough to figure that out one day:
[FT@fenrir G]$ dig +short -x 203.160.1.66 -x 203.160.1.67 -x
203.160.1.68 -x 203.160.1.69
localhost.
localhost.
localhost.
localhost.
[FT@fenrir G]$ whois 203.160.1.66
% [whois.apnic.net node-2]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
inetnum: 203.160.0.0 - 203.160.1.255
netname: VNPT-VNNIC-VN
country: VN
descr: Vietnam Posts and Telecommunications (VNPT)
descr: 23 Phan Chu Trinh st., Hanoi capital, Vietnam
admin-c: NXC1-AP
tech-c: KNH1-AP
status: ALLOCATED PORTABLE
changed: hm-changed@vnnic.net.vn 20041011
mnt-by: MAINT-VN-VNNIC
mnt-lower: MAINT-VN-VNPT
source: APNIC
