[51905] in North American Network Operators' Group
Re: How do you stop outgoing spam?
daemon@ATHENA.MIT.EDU (alex@yuriev.com)
Tue Sep 10 09:38:35 2002
Date: Tue, 10 Sep 2002 09:39:31 -0400 (EDT)
From: alex@yuriev.com
To: nanog@merit.edu
In-Reply-To: <3D7D98F5.203E96DF@he.iki.fi>
Errors-To: owner-nanog-outgoing@merit.edu
> If somebody is ignorant enough to implement IP over HTTP, why should
> they be accommodated? There are numerous reasons why there are other
> port numbers to TCP than 80 and other protocol numbers to IP than 6.
Unlike some people that immediately jump to conclusions, that someone may be
not arrogant, but bright - using port TCP 80 is an excellent way to bypass
firewalls. If your firewall performs content analysis, one can simply encode
the data in valid HTML code.
Alex
