sudo /etc/init.d/dnsmasq stop

from=eth0
to=eth1 # wifi

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

sudo ifconfig $from 192.168.42.1

sudo iptables --flush  
sudo iptables --table nat --flush
sudo iptables -t nat -A POSTROUTING -s 192.168.42.0/24 -o $to -j MASQUERADE

sudo /etc/init.d/dnsmasq start