Linux Rights Management

1, for the directory

R: Can query the directory under the file name LS

W: With Modify directory results permissions, such as create new file directory, delete and rename files and directories under this directory, cut (Touch MV RM CP)

X: Access to directory (CD)

For the catalog, 416 is not available.

2, the role of permissions for the file

R: Read content (cat more head tail)

W: Edit New Modified file contents (vi echo)

X: Executable

3. Mask default Permissions

0022 First-File special permissions

4. ACL permissions

Getfacl

Setfacl

Resolving the defect of permission assignment

5, Visudo

6, Setuid

Linux Rights Management