NANOG@Mar 21, 2009

Date: 21 Mar 2009 10:32:30 -0000
From: John Levine
Subject: Re: REVERSE DNS Practices.
To: nanog@nanog.org
Message-ID: <20090321103230.24415.qmail@simone.iecc.com>
Content-Type: text/plain; charset=iso-8859-1

> I want to ask some folks out there that maintain reverse DNS queries
>of their respective IP blocks. I want to know if there is a need for
>me to contact my upstream provider. I am in charge of 2 /24's under
>LACNIC. I've already registered my DNS servers on LACNIC. but for some
>weird reason it's not owning reverse resolves. any tips would be
>gladly appreciated.

The RIRs don't maintain rDNS for you. You'll have to trace the
delegations downward from in-addr.arpa, find out who's handling your
/24's, and contact them to get them to delegate your chunks to you.

R's,
John

自分の管理してる逆引きDNSがうまく反映されないんだよね～。上流ISPに問い合わせたほうがいい？LACNICには自分のDNSサーバ登録したんだけど。という質問に対しての回答。

全てのDNSはdelegationされているのでそのツリーを追ったほうがいいと思うんだけどね。