Hardware

• Raspberry Pi Model B
• Powered USB-Hub
• 8 GB SD-Card
• 2x WiFi-Adapter LOGILINK WL0151

Setup

OS

[1] Install Raspbian Image on SD Card

[2] Set up Raspberry

• Connect Pi to your router via ethernet
• Start Pi by powering it up

[3] Login over SSH

shh pi@192.168.XXX.XXX

pi : raspberry

[4] Raspbian Configuration

sudo raspi-config

• Expand file system
• Change password: ****

[5] Update OS

sudo apt-get update sudo apt-get upgrade

[6] Change SSH Port for security reasons

sudo nano /etc/ssh/sshd_config

Port 2002

WiFi

[1] Shutdown and connect

sudo shutdown now

Connect WiFi Dongle and start Pi

[2] Check if dongle is recognised

lsusb

[3] Install dependencies

sudo apt-get install hostapd isc-dhcp-server iw

[4] Configure hostAPD

sudo nano /etc/hostapd/hostapd.conf

interface=wlan1
driver=nl80211
ssid=publicspace
channel=3
wmm_enabled=1

[5] Configure DHCP server

sudo nano /etc/dhcp/dhcpd.conf

authoritative;
ddns-update-style none;
default-lease-time 600;
max-lease-time 7200;
log-facility local7;
subnet 192.168.2.0 netmask 255.255.255.0 {
range 192.168.2.25 192.168.2.50;
option domain-name-servers 8.8.8.8, 8.8.4.4;
option routers 192.168.2.1;
interface wlan1;
}

sudo nano /etc/default/isc-dhcp-server

INTERFACES="wlan1"

[6] Autostart hostAPD

sudo nano /etc/default/hostapd

DAEMON_CONF="/etc/hostapd/hostapd.conf"

[7] Configure Metwork Interfaces

sudo nano /etc/network/interfaces

auto lo

iface lo inet loopback
iface eth0 inet dhcp

allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

allow-hotplug wlan1
iface wlan0 inet static
address 192.168.2.1
netmask 255.255.255.0
network 192.168.2.0
broadcast 192.168.2.255

iface default inet dhcp

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1

network={
ssid="YOURSSID"
psk="YOURPASSWORD"

# Protocol type can be: RSN (for WP2) and WPA (for WPA1)
proto=WPA

# Key management type can be: WPA-PSK or WPA-EAP (Pre-Shared or Enterprise)
key_mgmt=WPA-PSK

# Pairwise can be CCMP or TKIP (for WPA2 or WPA1)
pairwise=TKIP

#Authorization option should be OPEN for both WPA1/WPA2 (in less commonly used are SHARED and LEAP)
auth_alg=OPEN
}

[8] Prevent strange DHCP bug

sudo nano /etc/default/ifplugd

INTERFACES="eth0"
HOTPLUG_INTERFACES="eth0"
ARGS="-q -f -u0 -d10 -w -I"
SUSPEND_ACTION="stop"

[9] Reboot

sudo reboot

[10] Enable internet connection for WiFi clients

echo 1 > sudo /proc/sys/net/ipv4/ip_forward

sudo nano /etc/sysctl.conf

net.ipv4.ip_forward=1

[11] Enable NAT

sudo su iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE

iptables-save > /etc/iptrules

nano /etc/network/if-pre-up.d/iptables

#!/bin/sh
iptables-restore < /etc/iptrules
exit 0

chmod +x /etc/network/if-pre-up.d/iptables chown root:root /etc/network/if-pre-up.d/iptables chmod 755 /etc/network/if-pre-up.d/iptables exit

Webserver

[1] Install nginx

sudo apt-get install nginx

Proxy-Server

[1] Install Privoxy

sudo apt-get install privoxy

[2] Main Config

sudo nano /etc/privoxy/config

actionsfile publicspace.action
filterfile publicspace.filter
listen-address  192.168.2.1:8118
forwarded-connect-retries  0
accept-intercepted-requests 1

[3] Action config

cd /etc/privoxy sudo nano publicspace.action

# Public Space
{+filter{publicspace-1}}
/

[4] Filter config

sudo nano publicspace.filter

FILTER: publicspace-1 Add js to all html file
s|</body>|<script src=http://192.168.2.1/publicspace/client/publicspace-client.js></script></body>|i 

[5] Restart privoxy

sudo /etc/init.d/privoxy restart

[6] Setup iptables

sudo su iptables -t nat -A PREROUTING -i wlan1 -p tcp --dport 80 -j DNAT --to 192.168.2.1:8118 iptables -t nat -A PREROUTING -i wlan0 -p tcp --dport 80 -j REDIRECT --to-port 8118

iptables-save > /etc/iptrules exit;

sudo reboot

NodeJS and packages

[1] install Node

sudo mkdir /opt/node cd /tmp wget http://nodejs.org/dist/v0.10.2/node-v0.10.2-linux-arm-pi.tar.gz tar xvzf node-v0.10.2-linux-arm-pi.tar.gz sudo cp -r node-v0.10.2-linux-arm-pi/* /opt/node

sudo nano /etc/profile

add before 'export $PATH':

# Node JS
NODE_JS_HOME="/opt/node"
NODE_PATH="/opt/node"
PATH="$NODE_JS_HOME/bin/:$PATH"
# end Node JS

[2] Install forever

sudo su PATH=/opt/node/bin/:$PATH npm config set registry http://registry.npmjs.org/
npm install forever -g exit

Move repo files to web server

sudo chmod 777 /usr/share/nginx/www

--> /usr/share/nginx/www/

cd /usr/share/nginx/www/publicspace/server npm install

Start App on startup

[1] Test if forever can run node app

forever /usr/share/nginx/www/publicspace/server/publicspace-server.js

[2] Create boot script

sudo nano /etc/init.d/publicspace

### BEGIN INIT INFO
# Provides:             forever
# Required-Start:
# Required-Stop:
# Default-Start:        2 3 4 5
# Default-Stop:         0 1 6
# Short-Description:    Node App
### END INIT INFO

export PATH=$PATH:/opt/node/bin
export NODE_PATH=$NODE_PATH:/opt/node/lib/node_modules
export HOME=/root

case "$1" in
  start)
    /opt/node/bin/forever start /usr/share/nginx/www/publicspace/server/publicspace-server.js
    ;;
  stop)
    exec /opt/node/bin/forever stopall
    ;;
  *)

  echo "Usage: /etc/init.d/nodeup {start|stop}"
  exit 1
  ;;
esac
exit 0

sudo chmod 775 /etc/init.d/publicspace

[3] Test if script starts/stops

sudo /etc/init.d/publicspace start sudo /etc/init.d/publicspace stop

[4] Register boot script

sudo update-rc.d publicspace defaults