Science Fair Project Encyclopedia
Discretionary access control
Discretionary Access Control (DAC) defines basic access control policies to objects in a filesystem.
Generally, these are done at the discretion of the object owner -- file/directory permissions and user/group ownership.
The Telecom Glossary defines DAC as "A means of restricting access to objects based on the identity and need-to-know of users and/or groups to which the object belongs. Controls are discretionary in the sense that a subject with a certain access permission is capable of passing that permission (directly or indirectly) to any other subject."
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details