Manage Permissions and Sharing Flashcards
What 4 ways can you access the Finder Info window?
- Press Command - I
- From the menu bar, choose File > Get Info
- Control-click the selected item and choose Get Info from the shortcut menu
- In a Finder window toolbar, click the Action menu (circle with three dots icon) and choose Get Info
In the Finder Info window, where can you see/inspect file and folder permissions?
The Sharing and Permissions disclosure triangle
In Sharing and Permissions, what are the three permission setting categories?
- Owner
- Group
- Everyone
In Sharing and Permissions, what is the “Owner” setting?
The owner is the user who created the item or copied it to the Mac
Who can change ownership of a file?
- The user who owns the file
2. Any administrator user
In Sharing and Permissions, what is the “Group” setting?
By default, the group permissions for an item are inherited from the folder it was created in.
In Sharing and Permissions, what is the “Everyone” setting?
It defines access for anyone who isn’t the owner and who isn’t part of the item’s group.
What is the standard file-system permission structure of macOS based on standard UNIX-style permissions?
POSIX-style permissions (Portable Operating System Interface)
What is the POSIX-style permissions system used for?
To define privilege rules separately at each ownership tier.
What are the three file-level permissions options available in the Finder
- Read and Write
- Read Only
- No Access
What are the four folder-level permissions options available in the Finder?
- Read and Write
- Read Only
- Write Only (Drop Box)
- No Access
How do access control lists (ACLs) differ from standard UNIX file system permissions?
ACLs expand the standard UNIX permissions architecture to allow more file and folder access control. macOS has adopted a style of ACLs similar to what’s available on Windows-based NTFS and UNIX file systems.
What are access control entries (ACEs)?
A set of permissions defined for a specific user or group.
What is the difference between ACLs and ACEs?
An ACL consists of one or more ACEs.
True/False: If an ACL rule applies to a user or group, this rule trumps standard UNIX permissions.
True
What are the default folder permissions for a users home folder?
Users have “Read and Write” access to their home folder and the staff group and everyone else are allowed only “Read Access”
Where can you disable Guest access to your Mac without a password?
Users and Groups pane in System Preferences
How does the default organization of the file system let users safely share local files and folders?
By using the Public folder that is readable by the everyone group. A user can share files, without configuring permissions, by moving files into their Public folder.
How does the Drop Box folder work in regards to item permissions?
The Drop Box folder has a custom ACE, which ensures that the owner of a Drop Box folder has full access to all ties in that drop box, so normal ownership rules don’t apply.
What’s unique about the permissions of /Users/Shared folder?
The Shared folder lets local users read and write files, but only the owner can delete it from the Shared folder.
What does the permission setting “sticky bit” mean?
It prevents other users from deleting items they don’t own.
How can you adjust sticky bit permissions setting?
They can be managed in Terminal.
What access do new items that are created in a user have?
Unrestricted read access
What is the easiest way to secure new items?
To store them in a folder that other users don’t have access to.
How do you adjust Sharing and Permission settings of an item you aren’t the owner of?
By unlocking the lock icon in the bottom right-hand corner and authenticating as an administrator user.
What do you have to do first before you can assign a new owner using the Finder Info window?
You must first add the user as an additional permissions entry (click the + button in the lower-left corner of the Info window and add user)
How do you propagate folder permissions?
- Click the lock
- Provide admin credentials
- Open the Action menu and choose “Apply to enclosed items”
True/False: When you apply permissions to enclosed folder items, it does not apply all permission settings to all enclosed items, not just the changes you recently made.
False
