Although a given file may reside in the same directory across multiple servers, and have the same file size, permissions, timestamp, etc., its inode is different from one server to the next.
即使某个文件在不同的服务器上会处于相同的目录下，文件大小、权限、时间戳等都完全相同，但是在不同服务器上他们的内码也是不同的。
Any given piece of running code will have different types of Permissions granted to it, in addition to having multiple instances of a specific Permission type.
除了对特定的Permission类型有多个实例，任何给定的一段运行代码都将得到不同类型的Permission。
Each user or group that is added to the ACL can have a different set of active permissions, enabling very granular control over exactly what type of access is available to any user.
添加到ACL的每个用户或组可以具有不同的活动权限，从而可对任何用户可用的访问权限类型进行适当的细粒度控制。
应用推荐