Chapter 9

User Accounts

This chapter’s learning objectives are

  • To understand the role of the user account and the group account
  • To know how to create, modify, and delete user and group accounts
  • To understand strong passwords and the various tools available for password management
  • To understand the role of the passwd, group, and shadow files
  • To know how to use the various Linux facilities to establish user resources
  • To know how to set up sudo access
  • To understand issues involved in user account policies

9.1 Introduction

The user account is the mechanism by which the Linux operating system is able to handle the task of protection. Protection is needed to ensure that users do not maliciously or through accident destroy (delete), manipulate, ...

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