driftnet - capture images from network traffic and display them in an X window;
optionally, capture audio streams and play them.
] [filter code
watches network traffic, and picks out and displays JPEG and GIF
images for display. It is an horrific invasion of privacy and shouldn't be
used by anyone anywhere. It has been described as `a graphical
(8)', ` EtherPeg
for Unix', and called all sorts of nasty
names by people on Freshmeat
. It is also possible to use
to capture MPEG audio data from the network and play it
through a player such as mpg123
Images may be saved by clicking on them.
- Print a summary of usage.
- Print additional details of packets captured to the terminal.
- Beep when a new image is displayed.
- -i interface
- Listen to packets on interface. By default, driftnet will
try to pick up traffic on all interfaces, but this does not work with all
versions of pcap(3); on such systems, an interface must be
specified. On some systems, driftnet can only use promiscuous mode
if an interface is specified.
- -f file
- Instead of listening on an interface, read captured packets from a
pcap(3); dump file; file can be a named pipe for use
with Kismet or similar.
- Do not put the interface into promiscuous mode.
- Operate in `adjunct mode', where driftnet gathers images for use by
another program, such as Jamie Zawinski's webcollage. In this mode,
no window is displayed; images are captured and saved in a temporary
directory, and their names written on standard output.
- -m number
- In adjunct mode, silently drop images if there are more than number
in the temporary directory. It is assumed that another process will delete
images which it has processed.
- -x prefix
- The filename prefix to use when saving images, by default
- -d directory
- Use directory to store temporary files. Driftnet will clear
this directory of its own temporary files on exit, but will not delete the
directory or any other files.
- Attempt to capture streamed audio data from the network, and either play
it or, in adjunct mode, save it in files. At present this only works with
- Capture streamed audio data only, ignoring images.
- -M command
- Use the named command to play MPEG audio data. The command,
which is executed using the shell, should accept MPEG frames on standard
input. The default is `mpg123 -'.
- -Z username
- Drop privileges to user username after starting pcap.
- List the system capture interfaces.
- Put the interface in monitor mode (not supported on all interfaces).
- Enable GTK display (this is the default).
- Enable the HTTP server to display images.
- Port number for the HTTP server (implies -w). Default: 9090.
- filter code
- Additional filter code to restrict the packets captured, in the libpcap
syntax. User filter code is evaluated as `tcp and ( filter code)'.
Chris Lightfoot <email@example.com>
David Suárez <firstname.lastname@example.org>
, version 1.2.0.
$Id: driftnet.1.in,v 1.7 2004/04/26 14:42:36 chris Exp $
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 675 Mass
Ave, Cambridge, MA 02139, USA.