它们使用通道启动程序的连接。

They use the channel initiator's connection.

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另一方面，通道启动程序的用户ID一般都是另一个用户ID。

On the other hand, the user ID for the channel initiator is essentially just another user ID.

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在通道启动的过程中调用安全出口，顾名思义，它通常用于授权目的。

A security exit is invoked during channel start up and, as the name suggests, is typically used for authorization purposes.

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