On Thu, 5 Feb 2004, Les Mikesell wrote: > On Thu, 2004-02-05 at 19:17, Julius Szelagiewicz wrote: > > > > > > tcpdump -i eth0 -s 1520 -w /tmp/tcpdump.out port 9100 or 53 > > > > > > and that will capture the packet stream to a file. That file can then > > > be viewed with ethereal using: > > > > > > ethereal -r /tmp/tcpdump.out > > > > > > Then, you can browse through the file looking at timestamps and packet > > > types. It might show exactly what is happing (or trying to happen). > > > > > Jim, > > sounds like plan. will do. julius > > Sometimes the dump to file is necessary but I've had pretty good > luck letting ethereal capture in real time. In the dialog you > get with capture/start you can put in a filter in the same > syntax that tcpdump would take and if that is enough to keep > the rate to something reasonable you can check the 'update > in real time' and 'automatic scrolling' buttons. The only time > I've had trouble has been when DNS couldn't keep up with a > large number of outside hosts, like on a busy web server.
I like to do the tcpdump separately to capture the packets, because then, if he needs help figuring it out, he can easily send the file to me to look at. You can capture and save with Ethereal, but I think it's easier to grab it with tcpdump. Plus, it's easier to explain the syntax to capture with tcpdump, because its a command line utility. explaining it in a gui tool is more challenging than solving the original problem :) Jim. ------------------------------------------------------- The SF.Net email is sponsored by EclipseCon 2004 Premiere Conference on Open Tools Development and Integration See the breadth of Eclipse activity. February 3-5 in Anaheim, CA. http://www.eclipsecon.org/osdn _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
