[146093] in North American Network Operators' Group
Re: Performance Issues - PTR Records
daemon@ATHENA.MIT.EDU (Matthew Palmer)
Wed Nov 2 19:03:15 2011
Date: Thu, 3 Nov 2011 10:02:15 +1100
From: Matthew Palmer <mpalmer@hezmatt.org>
To: nanog@nanog.org
Mail-Followup-To: nanog@nanog.org
In-Reply-To: <FCD26398C5EDE746BFC47F43EA52A17304E0EE9A@dino.ad.hostasaurus.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, Nov 02, 2011 at 06:12:21PM -0400, David Hubbard wrote:
> From: Matt Chung [mailto:itsmemattchung@gmail.com]
> > Historically, there was no compelling reason to create PTR
> > records for our CPE however more and more applications seem
> > to be dependent on it. Although we will be assigning a
> > record for each address, my question is why
> > is the application (specifically HTTP) dependent on a reverse record ?
> > What is the purpose?
>
> As a web host, we frequently find customers who have
> added Apache rules to their ecommerce sites to block
> undesirable traffic, such as credit card scammers, etc.
> Not knowing any better, they often do this by just
> blocking anything that ends in .in to block Indonesia
> for example.
That's even less effective than you'd naively expect, given that Indonesia's
TLD is .id...
- Matt
