From owner-freebsd-hackers Thu Sep 11 17:24:49 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id RAA11611 for hackers-outgoing; Thu, 11 Sep 1997 17:24:49 -0700 (PDT) Received: from earth.mat.net (root@earth.mat.net [206.246.122.2]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id RAA11606 for ; Thu, 11 Sep 1997 17:24:45 -0700 (PDT) Received: from Journey2.mat.net (journey2.mat.net [206.246.122.116]) by earth.mat.net (8.8.7/8.6.12) with SMTP id UAA22539; Thu, 11 Sep 1997 20:24:28 -0400 (EDT) Date: Thu, 11 Sep 1997 20:24:36 -0400 (EDT) From: Chuck Robey X-Sender: chuckr@Journey2.mat.net To: "Eric A. Davis" cc: FreeBSD-Hackers Subject: Re: network programming. In-Reply-To: <199709112327.QAA10762@shark.nas.nasa.gov> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Thu, 11 Sep 1997, Eric A. Davis wrote: > > You want tcpdump located at /usr/sbin/tcpdump. Thanks, that's looks like just the ticket. I think also I can't wait for mail order, I gotta get myself a copy of Stevens tcp book tomorrow, I've been told that Volume I is the one I can't delay getting. > > > On Thu, 11 Sep 1997 19:06:26 -0400 (EDT) Chuck Robey wrote > >I have to do my very first network programming, a UDP client+server, and I > >was wondering if anyone knows of how I could go about intercepting > >something sent to a UDP socket, so I could use it for troubleshooting? I > >don't want to receive it (else the client would never get it), just to > >monitor what's going on. This is my home machine, and I (obviously) have > >root here. > > > >I don't want the application written for me, just a tool I could use to > >capture what's going on between my buggy server and my buggy client. > > > >Thanks for any hints, guys. > > > >----------------------------+----------------------------------------------- > >Chuck Robey | Interests include any kind of voice or data > >chuckr@eng.umd.edu | communications topic, C programming, and Unix. > >213 Lakeside Drive Apt T-1 | > >Greenbelt, MD 20770 | I run Journey2 and picnic, both FreeBSD > >(301) 220-2114 | version 3.0 current -- and great FUN! > >----------------------------+----------------------------------------------- > > > > > -- > Eric Allen Davis Network Engineer > edavis@nas.nasa.gov NASA Ames Research Center > (415)604-2543 NAS Systems Division > Pager: (415)428-6931 > > > ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@eng.umd.edu | communications topic, C programming, and Unix. 213 Lakeside Drive Apt T-1 | Greenbelt, MD 20770 | I run Journey2 and picnic, both FreeBSD (301) 220-2114 | version 3.0 current -- and great FUN! ----------------------------+-----------------------------------------------