File system mounting, sharing, protection

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Presentation transcript:

File system mounting, sharing, protection 11.5. File Sharing 11.5.1. Multiple Users Owner Group approach UID in Unix, SID in Windows 11.6. Protection 11.6.1. Types of access Silberschatz, 6th ed. Chapters 11.

File System Mounting mount point Mounted file system New file system This is not lost

File sharing In a multiuser environment the operating system either can allow a user to access the files of other users by default or it may require that a user specifically grant access to the files.

Protection

Owner Group Universe approach

Owner Group Universe approach

UID in Unix, SID in Windows

UID in Unix, SID in Windows

Process Effective Permissions

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