By extending ontologies to describe services in a SOA, a machine can reason about the functionality they provide, the mechanism to invoke them, and the data they expect as input and return as output.

通过拓展本体以描述SOA当中的服务，机器可以推断它们提供的功能，调用它们的机制，以及它们所期望的输入和输出数据。

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By default, rsync USES Secure Shell (SSH) as its transport mechanism; you can reuse your machine aliases and public keys with rsync.

在默认情况下，rsync使用Secure Shell (SSH)作为传输机制；可以在rsync中重用机器别名和公共密钥。

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Now, go to your IBM NAS client machine that you just configured using the fallback mechanism and try to get an initial ticket, as shown below.

现在，回到您刚刚配置为使用后备机制的IBM NAS客户端计算机，并尝试获得一个初始票据，如下所示。

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