[166563] in North American Network Operators' Group
Re: Reverse DNS RFCs and Recommendations
daemon@ATHENA.MIT.EDU (Scott Howard)
Wed Oct 30 18:02:26 2013
In-Reply-To: <D27DF53349E1E94AA9599001CC1C718917A52754@kw2k8.KWAUTO.PRI>
Date: Wed, 30 Oct 2013 15:01:55 -0700
From: Scott Howard <scott@doc.net.au>
To: Nolan Rollo <nrollo@kw-corp.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, Oct 30, 2013 at 2:33 PM, Nolan Rollo <nrollo@kw-corp.com> wrote:
> So in the four examples below, 3 of them preface the IP with an alpha
> character. Charter however, starts the rDNS off with a number. I'm not
> arguing with anyone but what potential problems could that cause with DNS?
> I'm also thinking of the famous www.1and1.com, where the number "1"
> starts off one of the sections.
>
Using domain name parts that start with a number will likely cause issues
for anyone running resolvers written in the 80's.
Anyone running resolvers that are less than ~25 years will likely not have
any issues.
Scott
