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Table Of Contents  CertiGuide to Security+
 9  Chapter 5:  Operational/Organizational Security (Domain 5.0; 15%)
      9  5.5  Privilege Management

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5.5  Privilege Management
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5.5.2  Single Sign-on
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5.5.1  User / Group / Role Management

A central task in privilege management is the management of users, group membership and role membership. Each of these categories can be used for authorization. For example, you can assign a privilege to a single user, to a group or to a role.

Both groups and roles are collections of users. In fact, a role can be considered a special type of group, defined by job duties, whereas a group can categorize users, using any criteria (such as “friends of the admins” and “non friends of the admin”). Roles may be implemented on some systems using groups at the operating system level, or they might be implemented apart from the OS concept of groups, using a separate database of role membership information.

With both groups and roles, a single user can belong to more than one group/role. Similarly, a group/role can contain multiple users. Database administrators would call the relationships between users and groups, and users and roles, “many to many” in database jargon.

Roles Are Job Descriptions

Role-based management is based on job assignments

Some roles an organization might define include “customer service rep”, “accounts payable data entry clerk”, “operations supervisor”, etc.



Previous Topic/Section
5.5  Privilege Management
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5.5.2  Single Sign-on
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