Security Basics mailing list archives

Re: application for an employment


From: "Micheal Espinola Jr" <michealespinola () gmail com>
Date: Wed, 5 Apr 2006 12:07:43 -0400

I don't want to get involved in this debate, but I would hazard that
in legalese, the distinguishing factor would be intent.

A portscan would typically exhibit different behavior to its
connection patterns, and depending on what is being scanned (and
probably the history patterns of those connections), intent can be
implied.


On 4/3/06, David Gillett <gillettdavid () fhda edu> wrote:
Using a web server is NOT a port scan - in any manner.

A portscan makes a connect(), a web browser makes a
connect(). Please explain where exactly you see the
difference. Especially on layer 4.

 A port *scan* involves multiple connect() calls (which may
or may not succeed), to multiple ports and/or multiple addresses.
The connections thus established are not actually used to render
the service for which the port(s) accept connections.

 Distinguishing between a web client access and a port scan
isn't so hard.  Why must you pretend they're indistinguishable?

David Gillett



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