Date: Mon, 15 Jun 1998 16:47:10 +0200 (MEST) From: Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE> To: freebsd-questions@freefall.cdrom.com Subject: using tcpdump effectively Message-ID: <199806151447.QAA29137@gilberto.physik.RWTH-Aachen.DE>
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To trace down why some network based X11 sessions are spuriously failing I' trying to use tcpdump. What sporadically happens is that a X session to our Mentor Design Architect running on HP is ceased and the connection breaks (we login via rlogin and start the X client with DISPLAY set to the FreeBSD machine.) When the connection breaks we see something like 'no route to host' Could that be caused by denial of service attacks? What exactly is a denial of service attack? How could I detect it using tcpdump? Are there other tools to trace down such a problem ? -- Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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