On Fri, Jan 14, 2011 at 08:21:23AM -0500, Kwan Lowe wrote:
> On Fri, Jan 14, 2011 at 5:28 AM, Giles Coochey <giles@xxxxxxxxxxx> wrote:
> >>How can I dump every packets received by filter ?
> >
> > I use the following command to make packet captures:
> >
> > tcpdump -i eth0 -s 0 -w capture.cap
> >
> > It creates a file capture.cap that can be read by a packet analyzer - e.g.
> > wireshark.
>
> I often run a variation of the above in a screen session then
> disconnect.. There's probably an easier way, but I do so I don't see
> my own traffic.
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You can use 'not' with port or host specifications to not log matching traffic.
For example:
`tcpdump -i eth0 -s 0 -w capture.cap not port 22` will drop all SSH traffic from the pcap
`tcpdump -i eth0 -s 0 -w capture.cap not host <ip>` will drop all traffic to/from <ip> from the pcap
Joe
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