Today we’re doing another chat on Linux and covering some of the basic user and group configurations that you need to. We’re going to be covering useradd, userdel, usermod, groupmod, /etc/passwd, /etc/shadow, and other pertinent configurations and tools. The topics covered here are applicable to the CompTIA Linux+ and Red Had Certified System Administrator (RHCSA). This lab is inspired by Labs 25-27 in the 101 Labs Comptia Linux+ (affiliate link) book by Paul Browning. It is a great resource for studying the Linux+ and getting hands on Linux experience!

In the above video we cover the following topics (as well as answer questions from the live stream):

  • Understanding Linux User Types
  • What is /etc/passwd and why it Matters?
  • Admin Privileges (Root)
  • Understanding File Permissions
  • The Shadow File and Hashes of Users’ Passwords
  • Creating Files For New Users
  • Creating Users
  • Creating Groups
  • How to Give a User Admin (Root) Privileges
  • Understanding User Profiles

I’ll be doing other Linux+ labs on my YouTube channel, so keep an eye out for future topics!

Network Knowledge Wrap-Up

Here are some resources to guide you in your journey:

  • 101 Linux+ Labs (affiliate link)
  • CompTIA Linux+ Objectives
  • Version of Ubuntu I am using for the lab (make sure to get LTS Desktop version)