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iptables -F
iptables -F -t nat
iptables -X
iptables -P INPUT DROP
iptables -P OUTPUT DROP
iptables -P FORWARD DROP
iptables -A INPUT -p tcp --sport 80 --state RELATED,ESTABLISHED -j accept
iptables -A OUTPUT -p tcp --dport 80 --state NEW,RELATED,ESTABLISHED -j accept
iptables -A INPUT -p udp --sport 53 --state RELATED,ESTABLISHED -j accept
iptables -A OUTPUT -p udp --dport 53 --state NEW,RELATED,ESTABLISHED -j accept
iptables -A INPUT -p all -syn -m limit -limit 5/minute -j LOG -log-prefix "Firewalled2 packet IN :"
iptables -A OUTPU -p all -syn -m limit -limit 5/minute -j LOG -log-prefix "Firewalled2 packet OUT :" |