Overview of NTFS permissions

1. By setting NTFS permissions, different users can access different permissions

2. A user can access its resources only after the correct access permissions are assigned

3. Set permissions to prevent resources from being tampered with or deleted

File system Overview

A file system is a common method of organizing files on an external storage device:

•FAT Windows •NTFS Windows •EXT Linux CommonCopy the code

FAT convert to NTFS: convert drive letter: /fs: NTFS # Data not lost, but irreversible!

3. NTFS file system features

  1. Improve disk read and write performance
  2. Reliability Encrypted File System Access Control List (Permission Setting)
  3. Disk usage Indicates the quota of the compressed disk
  4. A single file can contain more than 4 GIGABytes

Fourth, modify NTFS permission

4.1. Cancel permission Inheritance

Effect: After canceling, you can modify the permission list at will.

Method: right folder properties – security – advanced – remove the first check – select copy

4.2 File and folder permissions

For example, user A can only read files in the jimi folder and cannot create new files in the JIMi folder. User B can only create new files in the JIMi folder and cannot read files.Copy the code

4.3 Accumulative Rights If a user belongs to multiple groups, the accumulative rights are added.

Case: User A belongs to both the IT group and the HR group. The IT group can read the jimI folder, and the HR group can write the JimI folder. In this case, user A has the read and write permissions.Copy the code

4.4 Maximum rejection when the user permission is accumulated, such as the denial of permission, the maximum rejection!

Example: User A belongs to the finance group, whose members are10The finance group has access to folder XXX. Now it is required that user A cannot leave the finance group, and user A does not have access to folder XXX.Copy the code

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

Case: User A has left the company, but the owner of the XXX folder is A. As user A has modified the permission of the XXX folder, other users have no permission to the XXX folder. Now, the administrator needs to modify the permission of the XXX folder again.Copy the code

4.6, compulsory inheritance effect: the next compulsory inheritance of father and son relationship! Method: right folder properties – security – advanced – tick the second sign, can!

For example: There are multiple subfolders and files under the XXX folder. Due to long-time permission management, the permissions of these subfolders have been changed differently. Now, the permissions of all subfiles and folders under the XXX folder need to be unified.Copy the code

4.7 Impact of File Replication on Permissions After file replication, the permissions of the file are overwritten by the permissions of the target folder.