setup_nat.sh

# iptables dance, probably needs reviewing
iptables -t nat -A POSTROUTING -o wlan0 -j MASQUERADE
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -m state --state NEW -i eth0 -j ACCEPT
iptables -P INPUT DROP
iptables -A FORWARD -i wlan0 -o wlan0 -j REJECT

# Show ip tables
iptables -L -v -n
iptables -S

ip route show


wifi config in
/etc/wpa_supplicant/wpa_supplicant.conf

dhcp client in (does not get overridden by /etc/network/interfaces/*)
/etc/dhcpcd.conf