Re: [Asrg] Proposal: NO_XMIT DNS record

"Alan DeKok" <aland@freeradius.org> Sun, 13 July 2003 20:51 UTC

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From: Alan DeKok <aland@freeradius.org>
To: asrg@ietf.org
Subject: Re: [Asrg] Proposal: NO_XMIT DNS record
In-Reply-To: Your message of "Sun, 13 Jul 2003 13:37:46 PDT." <aT5vaIe86J8qbrHbM02@x>
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Date: Sun, 13 Jul 2003 16:48:05 -0400

Scott Nelson <scott@spamwolf.com> wrote:
> If widely adopted, this would effectively stop spam from
> open proxies and cracked machines.  It might even stop spam
> from hijacked IP addresses, depending on how the rDNS is designated.

  It wouldn't stop the spam, it would give a filter which had very low
false positives & negatives.  Spammers could still DDoS people by
sending TCP SYN's.

> There is a conflict between the user of an IP address, 
> and the owner of the rDNS record.  Many ISPs do not currently
> allow the end user to set the rDNS record for the IP they use.
> Many others only allow it with the payment of very high fees.

  The IESG should make a statement about businesses selling "internet
connections".  Real "internet connections" are fully capable, for
traffic & identity.  Anything else is second class, and is not a full
internet connection.

  The rDNS problem is a political issue, not a technical matter.

  Alan DeKok.

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