[112839] in North American Network Operators' Group
Re: REVERSE DNS Practices.
daemon@ATHENA.MIT.EDU (bmanning@vacation.karoshi.com)
Sat Mar 21 09:02:32 2009
Date: Sat, 21 Mar 2009 13:00:55 +0000
From: bmanning@vacation.karoshi.com
To: bruce@yoafrica.com
In-Reply-To: <7c9a4be6ad650d86a4884a739cb2ada9@imap.yoafrica.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
the 20th or 21st century answer?
if you really don't care about the actual node, then you should map the
numbers to topologically significant names - after all, the reverse map
follows topology, not some goofball - layer 9 - ego trip thing.
or - the more modern approach is to let the node (w/ proper authorization)
do a secure dynamic update of the revserse map - so the forward and reverse
delegations match. ... a -VERY- useful technique.
--bill
On Sat, Mar 21, 2009 at 01:38:55PM +0300, bruce@yoafrica.com wrote:
> Slighty related...
>
> Can people please post their recommended reverse dns naming conventions for a small ISP with growth and scalability in mind.
> I already have one drawn up, but I would like to contrast and compare :D
>
> Thanks
>
> On 21 Mar 2009 10:32:30 -0000, John Levine <johnl@iecc.com> wrote:
> >> 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
>
