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Reverse DNS RFCs and Recommendations
- Subject: Reverse DNS RFCs and Recommendations
- From: nrollo at kw-corp.com (Nolan Rollo)
- Date: Wed, 30 Oct 2013 21:33:38 +0000
- In-reply-to: <CAP-guGV5j+uPhA=32psYO0M34Wb3Pdak9VNorWQsU-ovLUXygg@mail.gmail.com>
- References: <[email protected]> <CAP-guGV5j+uPhA=32psYO0M34Wb3Pdak9VNorWQsU-ovLUXygg@mail.gmail.com>
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.
<snip>
3. Start each section of the name with a letter, not a number or hyphen.
<snip>
> Actual Examples:
> cpe-67-XX-XX-XX.stny.res.rr.com - 67.XX.XX.XX
> d28-XX-XX-XX.dim.wideopenwest.com - 28.XX.XX.XX
> c-68-XX-XX-XX.hsd1.mi.comcast.net - 68.XX.XX.XX
> 24-XX-XX-XX.static.bycy.mi.charter.com - 24.XX.XX.XX