其中两个配置私有 IP 地址，另一个配置公共 IP 地址。

Two with private IP address and one with public IP address. As shown in the image below, enter the relevant fields for en0 (which you will configure for a public IP address).

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NAT 技术将外部公共 IP 地址映射到 Amazon EC2 网络中的内部 IP 地址。

NAT technology maps an external public IP address to an internal IP address within the Amazon EC2 network.

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我们为两种接口均使用了静态IP地址：公共网络接口eth0的IP地址为192.168.17.201；集群网络接口eth1的IP地址为192.168.112.1。

We use static IP addresses for both interfaces: the public network interface eth0 has the IP address 192.168.17.201; the cluster network interface eth1 has the IP address 192.168.112.1.

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