Date: Sun, 09 Aug 1998 21:08:55 +0200 From: sthaug@nethelp.no To: jdn@acp.qiv.com Cc: freebsd-security@FreeBSD.ORG Subject: Re: What are these connect attempts? Message-ID: <12622.902689735@verdi.nethelp.no> In-Reply-To: Your message of "Sun, 9 Aug 1998 14:01:33 -0500 (CDT)" References: <Pine.BSF.3.96.980809135827.1302B-100000@acp.qiv.com>
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> >traceroute. > > Did that. I guess I was a bit terse. What *you* are seeing is somebody running traceroute against your machine. > Except for the 195.8.97.66, which is ns5.isi.net, they all > seen to come from shortcut.???.isi.net. They all trace back to a > running machine. What are they looking for and what do they expect to > find at those high port numbers? That's precisely the point - they *don't* expect to find anything at those high port numbers on your machine. The high port numbers are used to minimize the probability that traceroute will collide with a running application. traceroute normally starts at port (32768 + 666) and runs up from there. Steinar Haug, Nethelp consulting, sthaug@nethelp.no To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe security" in the body of the message
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