In this section of the course,
we're going to start covering domain two, security,
and specifically objective 2.2,
which focuses on users and groups.
Objective 2.2 states that given a scenario,
you must implement identity management.
That's right, this section is all about users and groups.
We're going to start out talking
about the superuser or the root user,
then we're not only going to discuss but also demonstrate
how to create, modify and delete users and groups
from our Linux system.
After that, you're going to learn how to query users in groups
across the system and how to configure account profiles.
As I said, you won't just be learning the theory here,
but I'm also going to be showing you how to use the commands
associated with performing all these different actions
in the demo environment.
So this is a way we're going to work
as we go through all the pace of the course
I'm first going to discuss how these things work,
and then Jamari is going to take you
into a live demonstration on a Linux system
to see how you can execute these things in the shell.
So if you haven't already installed CentOS for yourself,
I recommend you pause the video now,
go back and install your own Linux operating system now
so you can follow along with the demonstrations.
There is no better way to gain experience with Linux
than to actually enter these commands yourself,
and practice them hands on in your own environment.
So if you've installed your copy of CentOS already,
let's dive into our lessons on users and groups.