Hardware Reference
In-Depth Information
In fact, if you make your kit look like trash, people are less likely to want to pick it up
and take a closer look. Simply putting your container inside an old plastic bag will
lend it a little trashy camouflage.
Finally, always think about any negative impact your kit could have on the
environment. An abandoned battery pack left outside in the sun could potentially
lead to a fire or explosion. Keep a watchful eye on your kit from a distance at all
times and remember to bring it back inside after a mission.
Setting up point-to-point networking
When you take your headless Pi outside into the real world, chances are you'll want
to communicate with it from a netbook or laptop from time to time. Since you won't
be bringing your router or access point along, we need a way to make a direct point-
to-point connection between your Pi and the other computer.
Creating a direct wired connection
As there won't be a DHCP server to hand out IP addresses to our two network
devices, what we want to do is assign static IP addresses on both the Pi and the
laptop. We can pick any two addresses from the private IPv4 address space we
saw in the
Mapping out your network with Nmap
section in
Chapter 4
,
Wi-Fi Pranks
- Exploring Your Network
. In the following example, we'll use 192.168.10.1 for the
Pi and 192.168.10.2 for the laptop. These are the steps to create a direct wired
connection:
1.
Type in the following command on the Pi to open up the network
interfaces configuration:
pi@raspberrypi ~ $ sudo nano /etc/network/interfaces
2. Now, find the line that says
iface eth0 inet dhcp
and put a
#
character in
front of the line to temporarily disable requesting an IP address from a
DHCP server. Then add the following three lines beneath it:
iface eth0 inet static
address 192.168.10.1
netmask 255.255.255.0
