[58775] in North American Network Operators' Group
Re: dnsbl's? - an informal survey
daemon@ATHENA.MIT.EDU (Mr. James W. Laferriere)
Sat May 31 09:44:22 2003
Date: Sat, 31 May 2003 09:43:48 -0400 (EDT)
From: "Mr. James W. Laferriere" <babydr@baby-dragons.com>
To: Jack Bates <jbates@brightok.net>
Cc: nanog@merit.edu
In-Reply-To: <3ED812AA.4040800@brightok.net>
Errors-To: owner-nanog-outgoing@merit.edu
Hello Jack ,
On Fri, 30 May 2003, Jack Bates wrote:
> Mr. James W. Laferriere wrote:
> <snip>
> > White listing is NOT what was being discussed . Tho is can be
> > adventagous in the right circumstances .
> <snip>
> > And neither was Static addressing . Filtering was being discussed
> > based on some unknown (to me probably others as well) methodology .
> > Twyl , JimL
> White listing comes with any blacklist. The blacklists in particular
> being discussed were the @dynamics, like the PDL and dynablock at
> easynet. Both lists quite clearly state how they build their lists and
> what they are designed to block (dynablock only takes out dialup, and
> PDL takes out all dynamic addressing).
Query , How is it determined that the address in question is
dynamic or not ? Who/how/what makes that determination ?
This is the core of my concerns .
> Given the number of insecure client systems on dynamic addressing (proxy
> servers, trojans, etc), accepting email from dynamic addresses is
> becoming inherently more dangerous. If smarthosts can't be used from
> those addresses, then special whitelisting can be done.
Highly agreed . But sure am hoping some better solutions are
being developed .
> Of course, the person implementing email blocks of any type, especially
> public blacklists, must take some ammount of responsibility in
> maintaining legitimate email communications as dictated by users.
YES ! Without this there is no check &/or balance to the
procedure/s in use . Twyl , JimL
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| James W. Laferriere | System Techniques | Give me VMS |
| Network Engineer | P.O. Box 854 | Give me Linux |
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