Time
8 hours 30 minutes
Difficulty
Beginner
CEU/CPE
10

Video Transcription

00:00
Hello, everyone. Welcome to the Lenox Plus course.
00:05
My name is Dean Pompilio, otherwise known as polymath.
00:10
Some of you might have seen some of the other courses that I've produced for Cyber Eri
00:16
a little bit about my history. I've been 19 professional, as we see here since 1999.
00:21
I've had quite a few different job titles
00:24
before becoming a technical trainer back in 2011.
00:30
I work for a lot of government agencies, several international banks,
00:34
credit card companies and so forth.
00:36
And I've been very fortunate to get some really great experience in all these different places that I've worked.
00:41
And a lot of those instances I was managing lyrics system, sometimes dozens of them
00:48
that I was responsible for.
00:51
So I'm really hoping that all of you enjoy this class and all that material that will be covering
00:56
a big part of the Lenox plus exam is being able to work from the command line. I'll be demonstrating,
01:02
uh, quite a few commands and different concepts throughout this course
01:07
and using all the available tools that help illustrate all the concepts.
01:12
And as you can see,
01:14
we've got a very high level overview some of the things you're expected to know.
01:19
I'll go into that little bit more detail for the individual chapters.
01:25
Now for this particular class, I built a virtual machine using the Scent OS
01:30
version of Lennox. This is based on,
01:34
uh, Red Hat Enterprise Lennox,
01:38
and it's free,
01:40
of course.
01:41
Uh, so that's always a good thing.
01:45
And here's the the page you can go to center west dot or GE about and read all about the sandals, a project
01:52
and look at documentation and
01:56
other things that you might find interesting.
01:59
It's definitely worth spending a little bit of time poking around on their website,
02:06
and you could download that for free and build your own virtual machine using your favorite hyper visor.
02:14
So, as I was saying just made to go, I'm gonna be doing lots and lots and lots of demonstrations. You could think of these as a miniature labs. In a sense, you could try to copy what I'm doing if you wish,
02:25
But the plan ultimately is to create the labs on demand and make them available through the cyber ery virtual environment.
02:34
Those labs have not been created yet,
02:36
so that's why I'd like you to stay tuned, but I'll
02:38
those are becoming at some point,
02:40
and that'll give you much more detailed
02:44
challenges in order to approve your mastery over the Lenox material.
02:50
All right, lookit here about the exams. Both exams are 60 questions, each with multiple choice format. You get 90 minutes
02:58
and they're supposed to have some experience, like a plus network plus and hopefully at least a year of experience. As a limits administrator,
03:07
you could come and do a class like this completely cold and not know anything about limits. But that's gonna be kind of difficult. Better to have some
03:14
practical knowledge.
03:15
And if you build that sent us a BM,
03:17
you can use it indefinitely, so you'll have that as your
03:23
as a tool for here
03:23
Education.
03:27
So, breaking down the first exam,
03:30
we can see that divide into four sections with a percentage
03:34
indicator. They're showing how that what? You know, the emphasis as we can see, the main part of the first exam is lots of Lennox commands, followed by learning about file systems,
03:46
managing packages and then the overall
03:47
architecture.
03:50
Now I've created this course to map exactly to the exam objectives as stated
03:55
by coming here.
03:59
So when we're going through all the different sections, it may seem like things are kind of jumping around in a strange order.
04:03
But that's that's the actual exam mapping that come Tia provides on their website.
04:09
So I've I've tried to stay with that consistently to make sure that it's easy from the student
04:15
to know which which section that were in and what the various topics are within each section.
04:20
So let's review these really quick underneath a system. Architecture will look at hardware settings
04:26
and some of the considerations for
04:29
how that what that means in a virtual machine environment.
04:32
We'll also look at what's involved with booting the system and learn about all the different processes and steps
04:39
that are required for a system to get into a usable state.
04:44
And then we'll touch on run levels
04:46
and boot targets, showing how to go from
04:49
a text environmental graphical environment, multi user environment,
04:54
a multi user environment with networking and so on.
04:59
Then we'll get into the installation of Lennox, and I'll demonstrate how that's done.
05:03
Well, look at hard disk layouts.
05:05
Some of the parameters you can change for your boot manager.
05:10
We'll talk about shared libraries and why they're important to your
05:14
installation of Lennox.
05:16
And then we'll touch on on on all three of the package management systems,
05:20
the Debian
05:23
method
05:24
and then rpm and yum
05:25
ah, young being what we would be using mostly for the Center West installation.
05:30
So we'll see what's involved with adding and removing packages.
05:34
There's quite a bit here about commands.
05:38
Well, look about. Look at how filtering with commands, how to use redirection, how to use and put it out. Put redirection howto look for log files,
05:47
how to do some editing,
05:50
dealing with processes,
05:53
changing their priority killing processes.
05:56
We'll also touch on regular expressions,
06:00
and we'll finish up with everyone's favorite editor, which is V. I.
06:05
Our next section is covering all the aspects of file systems and the false system hierarchy.
06:12
You need to understand where everything goes and analytic system, so we'll have some focus on that,
06:17
but also looking at how the partition a disc,
06:19
how to mounted on mount file systems, how to set quotas for
06:25
for user's so that they don't use too many resources,
06:28
and we'll also get into permissions of files
06:31
and where they should be located on a system.
06:34
In addition, Thio
06:36
hard links and soft links we'll see what's involved with that.
06:42
Then we move on to the next exam.
06:44
This one has six different sections instead of four, and it's broken down a little bit differently as faras the percentage.
06:51
But let's go through these roll quick and see what's involved.
06:56
We start off with
06:58
learning a little bit about shell scripting
07:00
and how to write some simple scripts
07:02
and also touch on
07:04
the use of the word of the freely available databases that you can install
07:11
for your linen system
07:13
of the Maria database.
07:15
Then we'll look at our window managers and display man jurors
07:18
and review some of the accessibility settings for people with certain kinds of disabilities, like
07:24
sight or hearing related disabilities.
07:27
Even you know, special
07:30
capabilities for using a keyboard if you don't have the full use of all 10 fingers, for instance,
07:35
and we'll look at the creation of users and groups
07:39
and how to schedule jobs.
07:41
And also how did you
07:43
specify that your system should use your language of choice?
07:46
We'll look at some of the ways to, uh, to create those settings,
07:51
then we'll talk about the advantages of using that were time protocol
07:57
how logs are generated on the system where they're stored,
08:01
get into email and also cover a little bit about how to set up printers.
08:05
Kind of wide variety of things underneath. Essential
08:09
system service is.
08:11
Then we have networking.
08:13
So we'll go into
08:13
some of the details about how to how an I P address is constructed. What cider notation is more class ful
08:20
of notation, a network of ranges are. We'll talk about public addresses and private addresses,
08:28
also going through some troubleshooting sections
08:31
and figuring out what is involved with setting up de NS for a client system.
08:39
And then, lastly, we have the security module
08:43
where we'll go into lots of different aspects of security
08:46
settings on a system some of the system configuration files that are responsible for that
08:52
trying to harden the host to reduce the attack surface of the general idea.
08:56
And then we'll wrap up the course with learning a little bit about encryption, using SS H Way and the new privacy car.
09:05
All right, let's get started. I hope you enjoy the course.
09:09
Allah forward to hearing your feedback. Thank you

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Dean Pompilio
CEO of SteppingStone Solutions
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