Threats to Macintosh's OS X operating system are increasing in sophistication and number. Whether it is the exploitation of an increasing number of holes, use of rootkits for post compromise concealment or distributed denial of service, knowing how the system is vulnerable and how to defend it is critical to computer security. This book brings all this information together, providing a solid basis to help you succeed in protecting your organization from risk. * Cuts through the hype with a serious discussion of the security vulnerabilities of the Mac OS X operating system * Reveals...

Permissions problems got you down? Turn to Unix expert Brian Tanaka's unique guide to the permissions in Mac OS X 10.5 Leopard that control access to your files, folders, and disks. You'll learn how to keep files private, when to set Ignore Permissions, what happens when you repair permissions, how to delete stuck files, and the best ways to solve permissions-related problems. Advanced concepts include the sticky bit, Leopard's more-important access control lists, bit masks, and symbolic versus absolute ways to set permissions. The book covers how to take control of permissions via the...

Learn to manage user accounts and parental controls in Leopard! User accounts are an integral part of Mac OS X, but for many people, they're a source of confusion. No more, thanks to Kirk McElhearn's straightforward explanations, which help you understand and manage all the accounts for people who use your Mac, even if the only person is you. You'll learn how to create the right types of accounts for the different people who use your Mac, why you need at least two accounts, and what you can do with the many new options in Leopard's parental controls. Kirk shows you how to set up a...