IP Tables commands to allow web traffic, ssh traffic and port 4000 traffic

gistfile1.txt

sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A INPUT -i ! lo -d 127.0.0.0/8 -j REJECT
sudo iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
sudo iptables -A OUTPUT -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 80 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 443 -j ACCEPT
sudo iptables -A INPUT -p tcp --dport 4000 -j ACCEPT
sudo iptables -A INPUT -p tcp -m state --state NEW --dport 22 -j ACCEPT
sudo iptables -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT
sudo iptables -A INPUT -j REJECT
sudo iptables -A FORWARD -j REJECT

sudo iptables -L
sudo service iptables save