Linux: User and Group Management

Learn how to manage users and groups using command-line tools in Linux as a system administrator.

Introduction

• Welcome
• What you should know
• Get help with commands
• Reconfigure or migrate CentOS

1. Linux User Authentication

• User and group overview
• User account file
• User password file
• Group accounts and password files
• About Pluggable Authentication Modules

2. Account Policies

• Check password hash algorithms
• Test password strength
• Set default password policies
• Edit global account defaults
• Configure user account aging

3. Users, Groups, and Passwords

• Create and delete users
• Modify user accounts
• Create and delete groups
• Assign users to groups
• Lock accounts and passwords
• Force password resets

4. Elevating Privileges

• Become the super user
• Elevate group privileges
• Elevate privileges using sudo
• Manage sudo users

Conclusion

• Next steps