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|Developer's Guide to Oracle Solaris Security Oracle Solaris 11 Express 11/10|
For system security, the Oracle Solaris OS provides process privileges. Process privileges are an alternative to the standard, superuser-based UNIX model for granting access to privileged applications. The system administrator assigns users a set of process privileges that permit access to privileged applications. A user does not need to become superuser to use a privileged application.
Privileges enable system administrators to delegate limited permission to users to override system security instead of giving users complete root access. Accordingly, developers who create new privileged applications should test for specific privileges instead of checking for UID = 0. See Chapter 2, Developing Privileged Applications.
For highly stringent system security, the Trusted Extensions feature of the Oracle Solaris is also provided, which is outside of the scope of this book. The Trusted Extensions feature enables system administrators to specify the applications and files that a particular user can access. See http://www.sun.com/software/solaris/ds/trusted_extensions.jsp for more information.