Great Circle Associates Firewalls
(April 1995)
 

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Subject: Re: Exploiting UDP Ports
From: "George M. Weaver" <weaver @ astro . psu . edu>
Date: Mon, 17 Apr 95 10:23:12 EDT
To: Firewalls @ GreatCircle . COM

> Does anyone have a utility (similar to telnet?) that will
> let me create UDP packets from shell scripts so I can test UDP attacks
> from shell scripts?

W. Richard Stevens wrote a program called "sock" to make arbitrary TCP and
UDP connections which he used to generate data for the examples in his
wonderful book "TCP/IP Illustrated, Volume 1".  It is fully documented in
Appendix C, and instructions for obtaining the (free) source code are in
Appendix F.  Highly recommended.  (The code *and* the book.)

      -George

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