If you run a ls -al command in the users home directory, you quickly see a problem.

如果在用户主目录运行ls—al命令，您很快会看到问题。

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If you run an ls -al command on the Brian user's home directory, you can confirm this.

如果在brain用户的主目录运行ls—al命令，您可以得到确认。

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If there is no UID 404 on ServerB, then the file does not have an owner on ServerB, and you simply see "404" as the owner when you run a ls -al command.

如果ServerB上没有UID 404，那么ServerB上的文件就没有所有者，那么在运行ls—al命令时只能看到“404”作为所有者。

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