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Re: Computer systems blamed for feeble hurricane response?

  • From: Joseph S D Yao
  • Date: Tue Sep 13 17:27:38 2005

On Tue, Sep 13, 2005 at 04:56:58PM -0400, Joseph S D Yao wrote:
> On Tue, Sep 13, 2005 at 04:28:41PM -0400, Steven M. Bellovin wrote:
> ...
> > Telnet options, and for that matter speed, happen after the 3-way 
> > handshake.  We're not getting that far.
> > 
> > 		--Steven M. Bellovin, http://www.cs.columbia.edu/~smb
> 
> Steve, I defer to your expertise, as always.  ;-]


Nevertheless ... I went looking for comments on how this was being done,
and found the following specualtion by a small number of different
people.

"SEF [is] unique in that it can detect what appear to be telnet
connections to Port 25 and drop the connection. This is probably because
telnet connections send one character at a time whereas real SMTP
clients send all the strings at once."

This would not require the 3WH, ISTM.

-- 
Joe Yao
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