[Mimedefang] FTC asks ISPs to crack down on zombie PCs

[Kenneth Porter]

--On Wednesday, May 25, 2005 7:45 PM -0700 John Nemeth 
<jnemeth at victoria.tc.ca> wrote:

> FTP, on the other hand, is a valid concern,
> since it would mess with FTP clients in active mode.  Simplistic
> answers have a tendency to have many problems.

Two rules then: Allow FTP SYN's, and block all other SYN's. Are there any 
other "non-server" uses for inbound SYN?