iptables -F
iptables -X
iptables -Z
iptables -P INPUT DROP
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A INPUT -p tcp --dport 21 -j ACCEPT
iptables -A INPUT -p tcp --dport 22 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -p tcp --dport 12321 -j ACCEPT
iptables -A INPUT -s 61.174.14.214/32 -p tcp -m tcp --dport 3000 -j ACCEPT
iptables -A INPUT -s 58.135.68.106 -p tcp -m tcp --dport 3000 -j ACCEPT
