If you select the transport Default, user name and password are retrieved from transport level such as HTTP header.

如果您选择了Transport Default，则将从传输级(如HTTP报头)检索用户名和口令。

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At a programming level, notice that all these logins happen to be by means of passphrase-based SSH to the same host, with identical user and password credentials.

在编程的层次上，请注意，所有这些登录都是通过基于密码的ssh登录到相同的主机，并使用相同的用户和密码凭据。

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Simulate the testing of the local authorization for an instance-level operation (without the user ID and password).

模拟实例级操作(没有用户ID和密码)的本地授权测试。

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