sudo iptables -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A INPUT -p icmp -s ip_otros_nodos -j ACCEPT
sudo iptables -A INPUT -p udp --dport 68 -j ACCEPT
sudo iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
sudo iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 3001 -j ACCEPT
sudo iptables -A INPUT -p tcp -m state --state NEW -m tcp -s ip_grafana_collector --dport 12798 -j ACCEPT
sudo iptables -A INPUT -p tcp -m state --state NEW -m tcp -s ip_grafana_collector --dport 9001 -j ACCEPT
sudo iptables -A INPUT -j REJECT --reject-with icmp-host-prohibited