Control of access to flight paths will also need to be worked out.

解决对飞行路径的问控制。

To solve this problem, Ethernet requires that each computer has a unique Media Access Control address, or MAC address.

为了解决这个问题，以太网求每台计算机都有一个唯一的体问控制地址，即 MAC 地址。

There are many other models for access control – like the Chinese Wall model and Biba model.

有许多其他的问控制模型——比如 Chinese Wall 模型和 Biba 模型。

This is done through Permissions or Access Control Lists (ACL), which describe what access each user has for every file, folder and program on a computer.

这是通过权问控制列表 (ACL) 完成的，它描述了每个用户对计算机上的每个文件、文件夹和程序的问权。

For organizations with users at different levels of access privilege – like a spy agency – it's especially important for Access Control Lists to be configured correctly to ensure secrecy, integrity and availability.

对于拥有不同级别问权的用户的组织（如间谍机构），正确配置问控制列表以确保保密性、完整性和可用性尤为重。