Click the lock icon again to prevent any further changes.

Note: For Mac High Sierra (10.13.x), you will need to click on Allow too.Change Allow apps downloaded from: to App Store and identified developers.Enter your computer administrator's username and password.Click the lock icon at the bottom left to have access to make changes.Click on the Apple Icon at the top left corner of your screen.To install Zoom or Zoom Rooms on your Mac computer, you may need to change your Security and Privacy settings to allow for apps downloaded from identified developers. See also this question and answer What are all the available ACL attributes in Mac OS 10.13 High Sierra?.The below instructions cover installing the Zoom application on macOS. More safely, you can use chmod to modify the Unix style permissions - read the man page for usage and examples.Īs an alternative to the command line, you can use TinkerTool System (not free) to view and modify both ACLs and Unix/POSIX permissions.Īpple's reference for file and folder permissions is File system Details which discusses both Unix (also referred to as POSIX) permissions and ACLs. Read man chmod for how to do this - the example commands are useful.

If you are determined to do so the chmod command can be used. I recommend you do not try to modify these or any other ACLs created by macOS.

The second ACE for ~/Documents is related to file sharing - it may not be present on your Documents folder. The rwxr-x- and rwx- are Unix style permissions for owner, group and world.įor both the examples the ACL it is saying that no-one (not even the user) can delete the directory. Ls -led 43 gilby staff 1376 18 Jul 13:34 Documentsġ: group.16 allow search To see the full permissions including the ACL, open Terminal and use ls commands like these two: ls -led ~/ĭrwxr-x-+ 86 gilby staff 2752 7 Aug 11:17 /Users/gilby/ Apple does not provide a GUI interface for viewing or modifying ACLs. MacOS adds an ACL to some folders in `~/'. An ACL consists of one or more Access Control Entries (ACE). But their history goes back further - certainly to VAX/VMS and RSX-11M, and Wikipedia says Multics. These first appeared on Windows with Windows NT and on OS X from 10.4. Multiple folders in the home folder ~/ have what Finder reports as 'You have custom access'.įinder's Get Info only reports simple Unix style permissions based on read/write for Owner, Group (by default Staff) and World (Everyone).īut modern file/folder permissions can also use Access Control Lists (ACL).

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