iptables.sh

gistfile1.sh

sudo iptables -F
sudo iptables -X

sudo iptables -I INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
sudo iptables -A INPUT -p icmp -j ACCEPT                # allow ping
sudo iptables -A INPUT -p tcp --dport 22 -j ACCEPT      # allow SSH
sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT      # allow HTTP
sudo iptables -I INPUT -i lo -j ACCEPT                  # allow local
sudo iptables -A INPUT -j DROP                          # drop everything else