= tcpdump =
Powerful command-line packet analyzer.

== Capture data destined to port 80 ==
Gets data arriving at interface eth0, to port 80 and stores the hexadecimal and ASCII representation on file /tmp/out.txt
{{{#!highlight bash
tcpdump -X -pi eth0 port 80 > /tmp/out.txt
}}}

== Capture raw data destined to port 80 ==
Gets data arriving at interface eth0, to port 80 and stores the rawdata on file /tmp/out.bin
{{{#!highlight bash
tcpdump -pi eth0 port 90 -w /tmp/out.bin
}}}