在一个更实际的示例中，可以通过更多行的代码来管理各个不同的主机，对每个主机使用不同的帐号和登录协议。

In a more realistic example, a few more lines of code would manage a range of different hosts, and perhaps different accounts and login protocols for each.

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网际协议(IP)提供“主机对主机”包(或数据报)传递服务。

Internet Protocol (IP) provides a host-to-host packet — or datagram — delivery service.

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特别在当我们使用IP安全协议中的密码凭证来标志内部主机时，基于这些标志的策略对主机来说无疑更具可信性。

Especially when we use IP security protocol in the internal host password credentials to sign, on the basis of these marks strategy is undoubtedly more credibility for the host.

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