#begin firewall


#drop tot by default la INPUT si FORWARD
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -F -t filter
iptables -F -t nat


#accept pe input si forward pt 192.168.0.2
iptables -A FORWARD -i eth1  -s 192.168.0.0/24 -j ACCEPT
iptables -A FORWARD -i eth0  -d 192.168.0.0/24 -j ACCEPT

iptables -A INPUT -i eth1 -s 192.168.0.2 -j ACCEPT

#accept pe lo
iptables -A INPUT -i lo -j ACCEPT

#accept ssh
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp --dport 7 -j ACCEPT
#accept dhcp
#iptables -A INPUT -p udp --dport 67:68 -j ACCEPT

#related established
iptables -A INPUT -p ALL -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A FORWARD -p ALL -m state --state ESTABLISHED,RELATED -j ACCEPT

#nat
iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o eth0 -j MASQUERADE


#end firewall