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.

---
  Les Mikesell
   [EMAIL PROTECTED]




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