What Should Be The File Permissions For Tmp Directory On Mac Osx High Sierra

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The shell path for a user in macOS or OSX is a set of locations in the filing system whereby the user has permissions to use certain applications, commands and programs without the need to specify the full path to that command or program in the Terminal. This will work in macOS Mojave, Sierra and all older OSX operating systems; El Capitan.

If the permissions on your MacOS Sierra system seem broken, the OS comes with a utility you can use to repair the permissions. Here’s how it’s done.

For those of you familiar with the “Repair Disk Permissions” option that used to be located under “Utilities” > “Disk Utility” > “First Aid” in older versions of MacOS, you may notice this option is gone in MacOS Sierra. Instead, you have to perform these steps in Terminal.

  1. From the Finder, select the “Go” menu, then choose “Utilities“.
  2. Open “Terminal“.
  3. Type the following command, then press “Enter“:
    diskutil resetUserPermissions / `id -u`

Some users may need to run the command with “sudo” in front of it:

sudo diskutil resetUserPermissions / `id -u`

The system will then verify and repair permissions.

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One aspect of computer security is the security of system files and folders — files and folders created by macOS to run your computer. The security is primarily controlled by the ownership and permissions of the files and folders that make up macOS and the applications and data on your computer.

Any video converter mac free. Tunnelblick checks the security of itself and of the parts of macOS that it uses. That sometimes results in Tunnelblick complaining that a system folder is not secure, and refusing to connect a VPN. For example, you might see the following message after launching Tunnelblick:


Other problems with system folder security may only appear when you try to connect to a VPN.

Tunnelblick repairs the security of all of its own files and folders, but does not repair files and folders that it does not create, such as system folders.

How System Folders Become Insecure

System folders are secure when macOS is installed, and usually only become insecure as the result of a program installer behaving improperly. System folders could become insecure because of malware, but that is rare:

  • In May 2014, Apple's iTunes 11.2 update caused each system boot to set insecure permissions on /Users and /Users/Shared. This was corrected in iTunes 11.2.1.
  • There are reports that some older MacPorts installers makes /usr insecure, and that some SPSS and xQuartz installers and some player application installers for Vulkano streaming video make /Applications insecure.

Repairing System Folder Security

On OS X 10.11 and higher, some system folders are protected by 'System Integrity Protection'. However, other folders are not, and the 'Disk Utility' does not include 'Repair Disk Permissions'. Apple sometimes provides instructions for repairing permissions on items in your home folder, but they frequently change and are very involved.

On OS X 10.6 - 10.10, the ownership and permissions of system folders can be repaired by using the 'Disk Utility' application (/Applications/Utilities/Disk Utility). Select the boot volume in the list on the left, and click on 'Repair Disk Permissions'.

Disk Utility in OS X 10.5 and lower does not fix the ownership and permissions of system folders; they must be repaired manually using the Terminal application (/Applications/Utilities/Terminal).

Correct System Folder Ownership and Permissions

System folder ownership and permissions vary from folder to folder and from one version of macOS to another. The following table lists the standard (secure) ownership and permissions for selected system folders under various versions of OS X and macOS.

For OS X 10.11 and higher (including all versions of macOS):

FolderOwnerGroupPermissionsOctalTerminal command to repair
/Applicationsrootadminrwxrwxr-x0775sudo chown root:admin /Applications; sudo chmod 0775 /Applications
/Libraryrootwheelrwxr-xr-x0755sudo chown root:wheel /Library; sudo chmod 0755 /Library
/Library/Application Supportrootadminrwxr-xr-x0755sudo chown root:admin /Library/Application Support; sudo chmod 0755 /Library/Application Support
/tmp (10.11 - 10.14)rootwheelrwxr-xr-x0755sudo chown root:wheel /tmp; sudo chmod 0755 /tmp
/tmp (10.15+)rootadminrwxr-xr-x0755sudo chown root:admin /tmp; sudo chmod 0755 /tmp
/privaterootwheelrwxr-xr-x0755sudo chown root:wheel /private; sudo chmod 0755 /private
/private/tmprootwheelrwxrwxrwt1777sudo chown root:wheel /private/tmp; sudo chmod 01777 /private/tmp
/Usersrootadminrwxr-xr-x0755sudo chown root:admin /Users; sudo chmod 0755 /Users
/usrrootwheelrwxr-xr-x0755sudo chown root:wheel /usr; sudo chmod 0755 /usr
/usr/binrootwheelrwxr-xr-x0755sudo chown root:wheel /usr; sudo chmod 0755 /usr/bin

For OS X 10.7 - 10.10: Use 'Repair Disk Permissions' in Disk Utility

FolderOwnerGroupPermissionsOctal
/Applicationsrootadminrwxrwxr-x0775
/Libraryrootwheelrwxr-xr-x0755
/Library/Application Supportrootadminrwxr-xr-x0755
/privaterootwheelrwxr-xr-x0755
/Usersrootadminrwxr-xr-x0755
/usrrootwheelrwxr-xr-x0755
/usr/binrootwheelrwxr-xr-x0755

For OS X 10.6: Use 'Repair Disk Permissions' in Disk Utility

FolderOwnerGroupPermissionsOctal
/Applicationsrootadminrwxrwxr-x0775
/Libraryrootwheelrwxr-xr-t1755
/Library/Application Supportrootadminrwxr-xr-x0755
/privaterootwheelrwxr-xr-x0755
/Usersrootadminrwxrwxr-x0775
/usrrootwheelrwxr-xr-x0755
/usr/binrootwheelrwxr-xr-x0755

For OS X 10.5:

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FolderOwnerGroupPermissionsOctalTerminal command to repair
/Applicationsrootadminrwxrwxr-x0775sudo chown root:admin /Applications; sudo chmod 0775 /Applications
/Libraryrootadminrwxrwxr-t1775sudo chown root:admin /Library; sudo chmod 1775 /Library
/Library/Application Supportrootwheelrwxr-xr-x0755sudo chown root:wheel /Library/Application Support; sudo chmod 0755 /Library/Application Support
/Usersrootadminrwxrwxr-x0775sudo chown root:admin /Users; sudo chmod 0775 /Users
/usrrootwheelrwxr-xr-x0755sudo chown root:wheel /usr; sudo chmod 0755 /usr
/usr/binrootwheelrwxr-xr-x0755sudo chown root:wheel /usr; sudo chmod 0755 /usr/bin

For OS X 10.4:

FolderOwnerGroupPermissionsOctalTerminal command to repair
/Applicationsrootadminrwxrwxr-x0775sudo chown root:admin /Applications; sudo chmod 0775 /Applications
/Libraryrootadminrwxrwxr-t1775sudo chown root:admin /Library; sudo chmod 1775 /Library
/Library/Application Supportrootadminrwxr-xr-x0755sudo chown root:wheel /Library/Application Support; sudo chmod 0755 /Library/Application Support
/Usersrootadminrwxrwxr-t1775sudo chown root:admin /Users; sudo chmod 1775 /Users
/usrrootwheelrwxr-xr-x0755sudo chown root:wheel /usr; sudo chmod 0755 /usr
/usr/binrootwheelrwxr-xr-x0755sudo chown root:wheel /usr/bin; sudo chmod 0755 /usr/bin