Linux: User and Group Management

Linux: User and Group Management

1h 35mIntermediate2022-06-29

Authors

Grant McWilliams

Grant McWilliams

Consultant, Speaker, Writer, Professor, Developer

Course details

Linux servers often contain thousands of users and user files. It's easier to maintain users if they are contained in groups, but only if the limitations of groups are understood and managed properly. In this course, instructor Grant McWilliams shows you how to manage Linux users and groups using command-line tools.

Learn about Linux user authentication and account policies. Find out how to create, modify, and delete both user and group accounts, as well as assign users to groups, lock accounts and passwords, and force password resets. Explore elevating privileges using group passwords, changing to the super user, and honing your management skills with sudo as you get ready for your next steps as a Linux system administrator.

Skills covered

Identity and Access ManagementLinuxServer AdministrationCybersecurityNetwork and System AdministrationOpen SourceDeep Dive (X:Y)

Concepts

Introduction

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

Linux User Authentication

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

Account Policies

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

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

Elevating Privileges

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

Conclusion

  • Next steps
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