The following tutorial is adapted from Mac OS X Power Tools, Panther Edition, by MacFixIt's own Dan Frakes. PERMISSIONS, ACCOUNTS, AND FILE ORGANIZATION ...

Want to limit access to your system? Here's how to change file permissions on Mac and restrict their access to different users on your computer.

Learn how to navigate the Mac terminal and modify file permissions on your Mac computer with this step-by-step guide.

How to Change File Permission From Read-Only to Read-Write on a Mac. The Mac OS X Sharing & Permissions settings allow you to change who can view or edit certain files. Changing a file from read ...

What to do if you find you don't have the right Permissions in Mac OS X. Discover what Mac OS X Permissions are, and how to repair them ...

Make sure permissions are correct A range of permissions issues can effect Mac OS X applications, causing them not to launch.

Mac OS X 10.7 Lion makes system wide changes to standard folder ownership and permissions to enhance security, finding and recommending changes where necessary.