From owner-freebsd-questions Sun Apr 1 19:56:42 2001 Delivered-To: freebsd-questions@freebsd.org Received: from edwin.mounet.com (edwin.mounet.com [216.145.76.8]) by hub.freebsd.org (Postfix) with SMTP id 5DC1337B718 for ; Sun, 1 Apr 2001 19:56:39 -0700 (PDT) (envelope-from hornback@wireco.net) Received: (qmail 15395 invoked by uid 0); 2 Apr 2001 02:40:02 -0000 Received: from unknown (HELO tomcat) (216.145.67.32) by mounet.com with SMTP; 2 Apr 2001 02:40:02 -0000 From: "Andrew C. Hornback" To: "Matthew Emmerton" Cc: "FreeBSD Questions" Subject: RE: ARG!!! 450 Client host rejected: cannot find your hostnam Date: Sun, 1 Apr 2001 22:53:44 -0400 Message-ID: <00f601c0bb20$21b791c0$0e00000a@tomcat> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 In-Reply-To: <006b01c0bb1c$685b5bb0$1200a8c0@gsicomp.on.ca> Importance: Normal Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Matt, Thanks for getting to this one before I could... :) Everyone else, The best explanation that I have is that they want to authenticate exactly where you're coming from to prevent fraud. A lot of the various on-line shopping sites, etc. will not allow a connection that they can't authenticate. Being able to authenticate where a sale comes from allows them to track it back, etc. If your ISP doesn't have this set up properly, it's not going to work for you. When I worked at BlitzNet, we had customer support calls that I had to handle about this. People taking their business elsewhere because the entire staff that I replaced didn't have a coherent strategy to make things work properly. That's not a good sign. Maybe it's not a requirement of 128 bit encryption, per se, but the applications thereof on websites. --- Andy > -----Original Message----- > From: owner-freebsd-questions@FreeBSD.ORG > [mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Matthew > Emmerton > Sent: Sunday, April 01, 2001 10:27 PM > To: Randall Hopper; Andrew C. Hornback > Cc: FreeBSD Questions > Subject: Re: ARG!!! 450 Client host rejected: cannot find your hostnam > > > > |And what do you tell users when they try to use sites that require 128 > bit > > |encryption and that encryption level requires proper resolution of the > > |address forward and backward? "Oh, we don't support that, it's not > > |important..." ? I can hear a herd of users running for other ISPs... > > > > Ok, you've perked my interest. What does reverse DNS lookup have to do > > with 128-bit encryption. You may be implying a specific form of > encryption > > (IPsec or something?). I use 128-bit/1024-bit encryption in my e-mail > > daily, without reverse DNS ;-) > > Many SSL-enabled sites will refuse to connect with clients who have IPs > without proper reverse-DNS entries. I can't say why, all I know is that > from personal experience, *and* from working with the tech > support people at > an ISP I used to work for, this was a real big problem. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message