[GLLUG] tcpdump

Richard Houser rick at divinesymphony.net
Sat Aug 13 22:52:59 EDT 2016


Make sure you network device selection is correct. I think it defaults to the first nic, and I'm limited to a cell phone now.

On August 13, 2016 4:13:05 PM EDT, Chick Tower <c.e.tower at gmail.com> wrote:
>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
>_______________________________________________
>linux-user mailing list
>linux-user at egr.msu.edu
>http://mailman.egr.msu.edu/mailman/listinfo/linux-user

-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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