RHEL Port Forward

port-forward.sh

# PORT Forward Create
sudo iptables -t nat -A PREROUTING -p tcp --dport {PORT} -j DNAT --to-destination {HOST}
sudo iptables -t nat -A POSTROUTING -j MASQUERADE

sudo sysctl -w net.ipv4.ip_forward=1

sudo firewall-cmd --zone=public --add-port={PUBLIC_PORT}/tcp --permanent
sudo firewall-cmd --reload

# PORT Forward Delete
sudo iptables -t nat -F
sudo sysctl -w net.ipv4.ip_forward=0

sudo firewall-cmd --zone=public --remove-port={PUBLIC_PORT}/tcp --permanent
sudo firewall-cmd --reload