#本机端口转发 iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -t nat -A PREROUTING -i eth0 -p tcp --dport $public_port -j REDIRECT --to-ports $private_port #外网端口转发需要开启ip_forward echo "1" > /proc/sys/net/ipv4/ip_forward iptables -t nat -A PREROUTING -p tcp -m tcp --dport $local_port -j DNAT --to-destination $dest:$port iptables -t nat -A POSTROUTING -p tcp -m tcp --dport $local_port -j SNAT --to-source $local_ip
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