NTFS permissions

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1. Overview of NTFS permissions

1. By setting NTFS permissions, different users can access different objects
2. Users cannot access their resources until they have been assigned the correct access rights
3. Set permissions to prevent resources from being tampered with or deleted

2. File system overview

A file system is a method of organizing files on an external storage device.
Commonly used file systems are as follows:

• FAT    windows
• NTFS    windows
• EXT linux common

3. Features of NTFS file system

1. Improve disk read and write performance

2. Reliability

• encrypted file system
• Access Control List (Set Permissions)

3. Disk utilization

• compression
• disk quota

4. Support a single file larger than 4G

Fourth, modify NTFS permissions

1. Cancel permission inheritance

Function: After canceling, you can modify the permission list arbitrarily.
Method: Right click on the folder, properties → security → advanced → remove the first checkmark → select copy

2. File and Folder Permissions

File Permissions	Authorization content
fully control	Have read, write, modify, delete files, and special permissions
Revise	Has read, write, modify, delete file permissions
read and execute	Has read and execute file permissions
read	has permission to read the file
to write	Has permission to modify the contents of the file
special permission	Permissions to Control File Permission Lists

folder permissions	Authorization content
fully control	Have read, write, modify, delete files, and special permissions on files and folders
Revise	Has permission to read, write, modify, and delete files and folders
read and execute	Has permission to download, read, and execute files in the folder
list folder contents	Can list the contents of a folder
read	Has permission to download and read files in the folder
to write	Has permission to create new files in the folder
special permission	Controlling Permissions for Folder Permission Lists

3. Accumulation of permissions

When a user belongs to multiple groups at the same time, permissions are cumulative

4. Reject Max

When user permissions are accumulated, if you encounter permission denial, the maximum denial!

5. Take Ownership

By default, only administrator has this permission
Function: You can change the owner of any folder to administrator

6. Forced inheritance

Function: Forcibly inherit the parent-child relationship
Method: Right click on the folder, properties → security → advanced → tick the second checkmark

7. The impact of file copying on permissions

After the file is copied, the permissions of the file are overwritten by the permissions of the destination folder