Because Linux is a multiuser operating system, security is often based on accounts. Each person is provided a user account (see Chapter 7, “Managing User Accounts,” for details), and each user account is a member of one or more group accounts.
The group accounts are used to provide access or apply restrictions to user accounts that are members of a group. This access/restriction can be applied to files, directories, or other operating system features. By using group accounts, you can easily apply a security policy to multiple user accounts.
In this chapter, you learn more about the concept of group accounts. You also explore how to create, modify, and delete group accounts.
After reading this chapter and completing ...