On Tue, Apr 12, 2005 at 08:17:58PM -0600, Neil Schemenauer wrote:
> if your SCGI server is listening on port 3000, as root run:
>
>     # tcpdump -i lo -s 9000 -w capture.dat port 3000

I forget to mention, if you are not using Linux, the name of the
loopback interface is probably something other than "lo".  You will
need to specify that otherwise tcpdump will listen on some real
interface (e.g. a ethernet device).

  Neil