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If you want to work with Linux, you
need to login. Logging in means that you are

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going to use a user account and this
user account must have been set up for you.

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Current Linux distributions By default,
create an administrator user while installing.

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There is also the root
user, but don't use it.

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The root user has unrestricted access to the system, but
on most distributions it doesn't even have a password by default.

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In the previous lesson you have seen
that while installing Centos you can set

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the password for the root user.
On Ubuntu this option isn't even given.

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So login as your normal user with
administrator privileges. That will give you enough.

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Now login may
happen from a console.

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A console is
a text based interface.

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You can also login from a graphical
user interface or remotely using Secure Shell.

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Now what about graphical versus console?
What should you use to work with?

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Well, different graphical user interface systems are
available, but GNOME is a de facto standard.

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GNOME is used on Red Hat as well as
on Ubuntu and many other Linux distributions as well.

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Now, for all Linux graphical user interfaces,
you should know that the graphical user interface

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provides limited functionality on servers. You often
don't even find a graphical user interface.

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That means that you need to
focus on learning the command line.

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Let me show you what
the command line login looks like.

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Here you can
see command line login.

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On the command line login we see
short identification of the operating system and

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then it's asking how to login. Well,
this is where I enter my username

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and as well my password. And
that brings me to the command line.

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On this command line we see the bash shell and
you will learn how to work with the bash shell later.

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In case you are wondering, do we also
have this command line on the graphical user interface?

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Of course, it's called the terminal. And the easiest
way to access is to type term for terminal

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in the search bar on the top of
your screen and and then you start your terminal.

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So this is a terminal and
this is what it's all about.