Puzzle on Linux Security Principle

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Across
  1. 1. The --------cmd controls the default permissions given to a file when created.
  2. 4. The name of directory where you can see various type of File type Character by ls -l
  3. 5. the symbolic notation for removing the read, write and execution permission
  4. 8. is a protocol used to securely log onto remote systems, a most common way to access remote Linux .
  5. 9. The default umask value for normal user 00----
  6. 12. Permission attribute if allows files within a directory to be created and deleted.
  7. 13. attribute if allows a directory’s contents to be listed
  8. 16. File type Character for RAM
  9. 18. root user id
  10. 19. Acronym for GNU Network Object -------------------Environment is GNOME.
  11. 20. the symbol to present the combination of user +Group+Other
  12. 21. File type Character for Modem
Down
  1. 2. The command to add new user
  2. 3. The default umask for the root user 00--------------
  3. 6. File type Character for regular file
  4. 7. Permission attribute if allows a file to be treated as a program
  5. 10. GNOME is a Windows-like ----------------system that works on UNIX and UNIX-like systems
  6. 11. rmdir utility removes the directory , provided the directory is---------------.
  7. 14. rm -?? Directory, cmd would delete the files and directories, but would require a prompt for each of the files
  8. 15. lrwxrwxrwx is example of ---------------------link and it is the dummy permission.
  9. 17. A umask of 022 allows only you to write data, but anyone can ---------data