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Installing

On Debian based systems (raspberry pi, ubuntu) make sure you've got python-netaddr, python-scapy and tcpdump installed.

By default you won't see anything on the screen and it will drop things into a file called probemon.log.

If you want to you can use logrotate on this (and get compression). It's not very hard, I swear.

Go to /etc/logrotate.d and make a file probemon with something like the following:

/var/log/probemon.log {
  rotate 60
  daily
  dateext
  compress
  missingok
  notifempty
}

Now to start it on boot, don't worry about writing your own init.d, that's a pain. Use this tool which makes life easy.

In my case I go to the source directory and added this script, which I call startup.sh

#!/bin/sh
cd /var/log
exec /home/pi/probemon/probemon.py -i wlan1

Now I run the new-service.sh:

Service name : probemon
 Description : probemon
     Command : /home/pi/probemon/startup.sh
        User : root

It will error out a bunch of things and make things look terrible ... don't worry ... this is the easiest way. I know I know, the world is terrible.

# cd /etc/init.d
# ls -ltr
...
-rwx--x--x 1 root root 1875 Dec  7 08:58 filean4mZB
# mv filean4mZB probemon
# update-rc.d probemon defaults

Now we have a minimal thing going for us. Really? really.