Create an AP on a raspberry pi

README.md

Raspi Atlas AP

This will set up a raspbian access point with all traffic masqueraded through eth0

Usage

wget -O- https://gist.githubusercontent.com/slickplaid/a55bdcd5ad9c1ecc933bb0fd245dbbf6/raw/df2b624fc25ee742d971f999de85a4f4e2daaaf8/raspi-chromecast-ap.sh | sh

Connect to the AP through the SSID atlas and password chromecastftw

Recovery

If you need to revert these changes, you should be able to log in through wlan0 on 10.0.42.1

raspi-chromecast-ap.sh

#!/bin/bash

# prep
sudo apt-get update
sudo apt-get install dnsmasq hostapd -y
sudo systemctl stop dnsmasq
sudo systemctl stop hostapd
sudo cp /etc/dhcpcd.conf /etc/dhcpcd.conf.default
sudo mv /etc/dnsmasq.conf /etc/dnsmasq.conf.default

sudo cat >> /etc/dhcpcd.conf <<'_EOF'
interface wlan0
    static ip_address=10.0.42.1/24
_EOF

sudo cat >> /etc/dnsmasq.conf <<'_EOF'
interface=wlan0
  dhcp-range=10.0.42.50,10.0.42.100,24h
_EOF

sudo cat >> /etc/hostapd/hostapd.conf <<'_EOF'
interface=wlan0
driver=nl80211
ssid=atlas
hw_mode=g
channel=6
wmm_enabled=0
macaddr_acl=0
auth_algs=1
ignore_broadcast_ssid=0
wpa=2
wpa_passphrase=chromecastftw
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
_EOF

sudo sed -i -e 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/g' /etc/sysctl.conf
sudo iptables -t nat -A  POSTROUTING -o eth0 -j MASQUERADE
sudo sh -c "iptables-save > /etc/iptables.ipv4.nat"
sudo sed -i -e '$i \iptables-restore < /etc/iptables.ipv4.nat\n' /etc/rc.local

sudo service dhcpcd restart
sudo service hostapd start  
sudo service dnsmasq start