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宿主机无法访问虚拟机docker端口映射 Creating a Docker container with port mapping to the host machine, but unable to access the host machine port from outside? This is likely due to the host machine not having IP forwarding enabled, preventing the external network from forwarding to the Docker container's corresponding port. To resolve this, you can enable IP forwarding in Linux by modifying the net.ipv4.ip_forward kernel parameter. You can check whether IP forwarding is enabled by checking the value of /proc/sys/net/ipv4/ip_forward. To temporarily enable IP forwarding, you can use the command "echo 1 > /proc/sys/net/ipv4/ip_forward" or "sysctl -w net.ipv4.ip_forward=1". For permanent IP forwarding, you can modify the /etc/sysctl.conf file and set "net.ipv4.ip_forward = 1", then apply the changes with "sysctl -p /etc/sysctl.conf". Additionally, you can restart the network service or network interface to immediately apply the changes.
