[GLLUG] tcpdump
Chick Tower
c.e.tower at gmail.com
Sat Aug 13 16:13:05 EDT 2016
I upgraded to the new Slackware (14.2), and it has a newer version of
Firefox (45.3.0, after one upgrade). I'm on dial-up, and as soon as I
fire up Firefox the modem lights start flashing away, and my effective
modem speed seems to be at least halved. So, in addition to trying
other, less "chatty" browsers, I wanted try and analyze the traffic to
see if I could block it or modify Firefox to stop it.
Has anyone used tcpdump? I was looking at wireshark, but it said it was
a graphical version of tcpdump, and tcpdump is already installed.
However, when I run it, even according to the examples, it doesn't catch
anything at all. I've tried the following commands, as root:
tcpdump host <myhostname>
tcpdump -v host <myhostname>
tcpdump -v host <myfullyqualifiedhostname>
tcpdump -v host localhost
Does anyone have any tips?
--
Chick
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