We have entries for all of our space that is like 4-2-2-1.static.flhsi.com.
And will insert records for a customer at their request for their static
IP's.
Never seen a website query for PTR before it would serve a page. But
nothing surprises me these days.
We specifically used the word "Static" in the PTR record because we found
some mail providers would reject mail from them if it didn't include that
word. And it was worse if it included anything like "dynamic" "dyn". /YMMV
Nick Olsen
Network Operations (855) FLSPEED x106
----------------------------------------
From: "Kristian Hoffmann" <kh...@fire2wire.com>
Sent: Wednesday, March 05, 2014 5:07 PM
To: "WISPA General List" <wireless@wispa.org>
Subject: Re: [WISPA] rDNS for customer IPs
It helps to include the word "static" in the PTR record. At least one RBL
uses this as a litmus test for whether or not IPs are static vs. dynamic,
and will add your addresses en masse to their dynamic address block lists.
That is, if your give static IP addresses.
-Kristian
On 03/05/2014 01:16 PM, Chris Fabien wrote:
Is it customary to provide rDNS for all customer public IP addresses? We
just had a complaint of one particular website running very slow, our
customer contacted the website owner who said it was because we needed to
"fix" our rDNS. The website acts like it must be doing a rDNS lookup and
waiting for it to time out before serving a page.
We've not ever had this configured for customer IPs before. Are we
supposed to?
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