Ubuntu에서 port forwarding하기

19 Nov 2019 in Programming on DevOps

Ubuntu linux 에서 port forwarding하기

명령어

sysctl net.ipv4.ip_forward=1
iptables -t nat -A PREROUTING -p tcp --dport CUR_PORT -j DNAT --to-destination DES_IP:DES_PORT
iptables -t nat -A POSTROUTING -j MASQUERADE

초기화

iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -t nat -F
iptables -t mangle -F
iptables -F
iptables -X

초기화(ip6)

ip6tables -P INPUT ACCEPT
ip6tables -P FORWARD ACCEPT
ip6tables -P OUTPUT ACCEPT
ip6tables -t nat -F
ip6tables -t mangle -F
ip6tables -F
ip6tables -X