连接(网络访问)信息存储在System数据库目录、本地数据库目录和节点目录中。

Connectivity (network access) information is stored in the system database directory, local database directory and node directory.

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该节点目录条目必须包含关键信息主机名（也可以是 IP 地址）和一个通信端口（可以是端口名或端口号）。

The node directory entry must contain the key information hostname (IP address is also acceptable), and communication port (this may be in the form of a port name or number).

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为了完成这项任务，首先要在一个称为节点目录(node directory)的专用配置文件中添加一个条目。

To accomplish this task, you place an entry in a special configuration file known as the node directory.

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