[Dshield] Re: [Full-Disclosure] Port Blocking

Michael Vario mvario at acedsl.com
Sat Jun 28 02:40:07 GMT 2003

That's for enterprises, not for ISPs.  If an enterprise had ports blocked by their provider they'd have a fit.  And so should any
home user.  What ports a customer needs is up to the customer.  If I had an ISP that blocked ports, or told me I couldn't run a
server I would drop them like a hot potato.


> Date: Fri, 27 Jun 2003 10:09:31 -0700 (PDT)
> From: Mrcorp <mrcorp at yahoo.com>
> To: General DShield Discussion List <list at dshield.org>
> Subject: Re: [Dshield] Re: [Full-Disclosure] Port Blocking
> Message-ID: <20030627170931.63948.qmail at web20415.mail.yahoo.com>
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> I have been known for instigating, so here it goes...
> What happened to the golden security rule of "Deny everything, except what is truley needed."  I
> mean most ISP's User Agreements state that you are not allowed to run web servers, email servers
> and etc.  Therefore, only port a few ports ike TCP 80, 445 and perhaps one or two more are really
> needed.
> The second thought is, what if ISPs were like cable companies.  What if they only allowed specific
> ports (like channels) that they seem appropriate to their users???
> Mrcorp

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