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Reverse DNS RFCs and Recommendations
- Subject: Reverse DNS RFCs and Recommendations
- From: scott at doc.net.au (Scott Howard)
- Date: Wed, 30 Oct 2013 15:01:55 -0700
- In-reply-to: <[email protected]>
- References: <[email protected]> <CAP-guGV5j+uPhA=32psYO0M34Wb3Pdak9VNorWQsU-ovLUXygg@mail.gmail.com> <[email protected]>
On Wed, Oct 30, 2013 at 2:33 PM, Nolan Rollo <nrollo at 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