Best application ownership and permissions?
Best application ownership and permissions?
- Subject: Best application ownership and permissions?
- From: Bill Cheeseman <email@hidden>
- Date: Wed, 30 May 2012 12:07:45 -0400
What are the best (or correct, or recommended) ownership and permissions settings for ordinary third-party applications in Mac OS X 10.7 Lion? Were there different recommendations in older versions of Mac OS X?
The latest PackageMaker User Guide (Jan 2012) says this: "In most cases, the owner should be root and the group admin ."
There are 2 reasons why I'm asking:
(1) in a small random sample of third-party applications in my local /Applications folder, about half set the owner to system (root) and half to the current user. It makes at least this difference: the applications owned by the current user do not require authentication when I drag them out of the /Applications folder, but the applications owned by root do. It strikes me that requiring authentication is the better practice, since the /Applications folder is shared by all users.
(2) In Lion, the permissions for all subfolders in the root folder, including /Applications, were changed to mode 755 (writable only by root) instead of mode 775 (writable by the admin group) according to Apple's What's New in Mac OS X document for Lion. This indicates to me at least an intention to increase security with respect to manipulation of the /Applications folder.
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