WEBVTT

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 Hello and welcome to this video titled
 Virtualization Demonstration.

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 In this case, I'm going to show you
 how to create a virtual machine with

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 a Type 2 hypervisor and how you can do
 basic networking of tying two virtual

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 machines together within
 that Type 2 hypervisor.

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 So let's get right to it.

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 So in this example, the Type 2 hypervisor
 I'm going to use is Oracle's

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 Virtual Box. This is something you can
 easily do on your own as well because

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 Virtual Box is free to download.

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 Now in my particular case, I'm using
 a Macbook, which is running Mac OS,

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 but Virtual Box is also
 supported in Windows.

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 So if you have a Windows-based laptop,
 you can easily download this and

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 run it yourself.

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 So just do a Google search for Virtual
 Box and you'll be able to find

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 it and download it.

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 Now the next thing about Virtual Box,
 or I should say about creating a

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 virtual machine, is you have to ask yourself
 what kind of virtual machine

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 do I want to create.

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 So another thing you can do for free
 is you can create a virtual machine

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 of an Ubuntu desktop because
 Ubuntu is free to download.

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 So if we just go to Google and type
 Ubuntu download right here, Ubuntu

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.com and you can download for free.


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 So I'm going to use
 the 18.04 version.

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 I've actually already downloaded this
 so I'm going to skip that stuff,

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 but you can just download
 it right here.

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 So just download it to your download
 folder or your hard drive or wherever

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 it is. And so the steps to create a
 virtual machine are pretty simple.

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 So here we would start
 by clicking on Tools.

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 And by the way, as we can see,
 this is a layer two hypervisor.

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 I should say a Type 2 hypervisor, Type
 2 because it's operating on top

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 of my existing software, my Mac.

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 I would click on New.

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 I could give it any name I want, but I'm
 just going to give it some descriptive

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 name. Ubuntu test VM1.

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 Okay, I'm just going to leave the
 machine folder to its defaults.

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 The type here, well Ubuntu is Linux based,
 but you can see here you would

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 choose which one is appropriate.

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 So I'm just going to
 keep it with Linux.

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 And it defaults here
 to Ubuntu 64 bit.

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 Now you might say, but Keith, I don't
 know if it's Ubuntu 32 bit or Ubuntu

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 64 bit I should select.

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 Here's the great thing about this.


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 If you make a wrong selection, the worst
 that's going to happen is your

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 VM won't start. When you try to start
 up, if something will mess up, it'll

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 give you an error message, but it's
 not going to hurt anything because

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 it's all contained within
 this hypervisor.

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 So let's just start by
 doing Ubuntu 64 bit.

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 And if it turns out that it doesn't
 work, we'll just come back and we'll

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 change that later on.

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 No big deal. All right, now if we go
 to the website where we downloaded

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 that, Ubuntu download.

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 Okay, so it says right here, it says
 you should have a two gigahertz dual

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 core processor or better.

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 Now if we were talking about
 a type one hypervisor.

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 So for example, if I was to go into ESXi,
 which is a type one hypervisor,

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 a bare metal hypervisor, that's
 another name for it.

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 If I was to create a new virtual machine,
 it's right here, where it says

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 create register VM.

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 If I was to click on that, okay, so
 I'd select one of these things here,

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 create a new virtual machine.

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 I'd have to select what version of
 software, so I'm just going to, I'm

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 not going to go through
 all this here.

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 If I just want to get to a certain state,
 why don't we just do, yes, and

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 we'll just do Linux.

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 And down here, we'll do, oh, I don't
 know, just pick one, 64 bit, doesn't

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 matter. So what I want to show
 you is next, right here.

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 So because this is a type one hypervisor,
 one of the options it gives

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 us is CPU. Now this is sitting on a real
 physical server that has multiple

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 cores, multiple threads, multiple sockets,
 and so I can choose how many

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 CPUs I want, how many
 cores per socket.

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 That's one of the things
 I have to select.

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 But in a type two hypervisor, like VirtualBox,
 remember VirtualBox itself

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 does not have direct connection to
 the CPU and the RAM and everything

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 else. Mac does, my Mac OS X is my actual
 underlying software, my underlying

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 operating system that has the physical
 connections to my CPU, my RAM,

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 whatever. So my type two hypervisor,
 which is sitting on top of that,

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 it doesn't give me the option to specify
 how many CPUs in my Mac book

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 is going to consume, because
 it can't control that.

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 The Mac OS sitting underneath
 it can control it.

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 So I've got a lot less flexibility here
 when defining my virtual machine.

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 So in this case, pretty much the only
 thing I can select is how much memory.

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 And if we look at, if we go back, I'm
 not sure why I got rid of that,

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 so, boom two download.

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 So I can't really control this.

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 All I have to do is hope that my physical
 laptop or my physical Mac book

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 has this type of processor better,
 but I can't control this.

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 It says that this VM is going to need
 at least four gigs of RAM and 25

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 gigs of free hard disk space.

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 Okay, now in a type one hypervisor like
 ESXi, these are things, all three

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 of these, I would configure.

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 How many CPUs and the configuration of
 the CPU, how much RAM and how much

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 disk drive. In a type two hypervisor
 like VirtualBox, I have no control

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 over the CPU, and I have very little
 control over the hard disk drive.

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 As we can see here, pretty much all
 I have control over is the RAM and

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 told me I needed four gigs, so I'm
 going to bump this up to four gigs.

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 There we go, 4,096.

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 All right, let's just
 go ahead and create.

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 All right, now here's giving me a little
 bit of information, so as far

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 as creating a hard disk drive,
 I can allocate some memory.

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 I'll just let default to
 10 gigs in this case.

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 Create. Now because this is a virtual
 machine fundamentals course, there

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 were a lot of options there that I sort
 of skip past, which are more advanced

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 options when it comes to learning about
 virtual machines and the architecture

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 of those virtual machines.

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 I just want to show you the basics of
 creating an Ubuntu virtual machine

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 here. All right, so here it is.

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 It is done. Now, you might notice, nowhere
 in here did it ask me to specify

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 where the operating system is.

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 I know I've downloaded it in my downloads
 folder previously, but watch,

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 so when I start this up, it
 should actually tell me.

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 Here we go. So this is where it says,
 okay, you haven't told me to do

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 Ubuntu, but you haven't told me where
 the actual operating system is,

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 I'm supposed to run inside
 this virtual machine.

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 So I'm just going to select it.

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 It's in my downloads folder,
 and there it is right there.

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 So that is what I downloaded
 from the website.

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 So I'll just select that, and that
 should be all that he needs.

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 And so now Ubuntu is starting up.

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 Okay, so as just as if we were loading
 Ubuntu on a physical machine, we

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 have to go through a lot
 of the same steps.

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 So I'm just going to install it.

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 It's free. It doesn't require
 any licensing or anything.

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 I'm going to let default
 to English.

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 Continue. Normal installation.

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 Continue. Okay. It says the computer
 currently has no detected operating

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 systems. So remember, that's not talking
 about my actual MacBook because

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 clearly I have Mac OS X on there.

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 What this is talking about is
 within this virtual machine.

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 This is a brand new virtual machine that
 says, hey, I don't see an operating

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 system on here. That's fine because I
 want you to install Ubuntu on here.

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 So I'm just going to leave it to the default
 here of erase disk and install

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 Ubuntu. Continue.

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 We'll just let it default
 to my time zone.

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 And I will just say Keith.

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 Pick a username here.

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 Pick a password.

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 We'll just do I-N-E-1-2-3-4.

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 I-N-E-1-2-3-4. Continue.

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 And now it's going to take a couple
 of minutes to finish this process

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 as it's downloading the files
 and creating the VM.

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 And as soon as it's done, I'll
 be right back with you.

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 Okay. So our installation
 of our Ubuntu VM is done.

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 It's asking us to restart.

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 This should be a pretty quick
 process here of restarting.

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 Okay. Our Ubuntu VM has restarted.


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 Now it's asking me for
 my login credentials.

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 I-N-E-1-2-3-4, which
 I previously set up.

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 Sign in. And it will come
 up here in just a moment.

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 And there we go.

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 So now we have Ubuntu running
 as a VM on top of Mac OS.

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 All right. Next, we don't care
 about these various features.

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 Now the next thing I want to show you
 is how you can have networking between

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 your virtual machines.

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 Now if we were creating multiple virtual
 machines in a Type 1 hypervisor

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 like ESXi, we'd have the capabilities
 of a virtual switch or a V-switch.

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 And we would configure the ports on that
 V-switch much like we would configure

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 ports on a real switch connecting
 to real hosts.

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 Now in VirtualBox, because this is a
 Type 2 or otherwise called a hosted

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 supervisor or hypervisor, we
 don't have a virtual switch.

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 But we can perform some of
 the same types of things.

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 So notice here in this
 VM, I just created.

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 It came up with a wired NIC.

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 Now this isn't something I gave.

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 This was just a default.

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 And I'm going to go ahead and shut
 this guy down for a moment.

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 Power off because you can't really change
 the settings of a virtual machine

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 while it's up and active.

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 All right. So here we go.

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 And notice if we go into settings,
 okay, settings and network.

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 By default, it gave that VM a virtual
 adapter called adapter number one

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 connected to NAT.

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 That's the way VirtualBox allows this
 VM to connect to the outside world.

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 So I don't even have to do anything to
 provide outside world connectivity

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 for this particular
 virtual machine.

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 But what if I want this virtual machine
 to talk to another virtual machine

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 running at the same time?

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 So I want to provide a direct point
-to-point connection between them.

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 For example, I've got Ubuntu desktop
 here and I've got Ubuntu test VM1.

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 How would I connect those two guys directly
 together within my virtualized

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 environment? Well, how I would do that
 is I would go to settings, network,

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 and I would add a second adapter.

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 Which would look like
 this by default.

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 I would enable it and I would select
 exactly what says right here internal

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 network. Now this means this is an
 internal virtualized network within

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 VirtualBox. I would give that
 network a name like KeithNet.

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 All right, now I go to my other VM settings,
 network, adapter two, let's

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 enable it, connect that
 to an internal network.

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 And I get to choose which
 network do I want.

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 I'm going to choose KeithNet
 that I already created.

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 So now both of these VMs are going
 to have two network adapters.

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 Adapter number one is going to be their
 NAT adapter which gives them access

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 to my physical net card on my MacBook
 so they can get outside world access.

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 In addition to that, both these VMs
 are going to have a second virtual

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 net called adapter two.

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 That second virtual net is going to
 be internally connected to KeithNet.

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 And that's what's going to allow
 them to talk to each other.

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 So let's go ahead and power
 this guy up right here.

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 Start while we're doing that.

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 So bring him over here.

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 Let's power up the second one.

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 Start. All right, so I'll log into my
 first VM here and try to remember

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 what my password was that
 I set up for him.

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 Log into that. Log into my second Ubuntu
 VM right here which was INE 1234.

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 And now if we go up here and we click
 on the network settings, we can

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 see we're connected.

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 Click on wired settings.

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 All right, so it's kind of
 different just from this.

0:15:28.560000 --> 0:15:32.300000
 It's kind of difficult to see which
 one is connected to my NAT and which

0:15:32.300000 --> 0:15:35.540000
 one is connected to the
 network settings.

0:15:35.540000 --> 0:15:41.540000
 KeithNet. But a quick way I can do
 that is if it was connected to NAT,

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 then I should have an actual IP address
 from my corporate network.

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 Okay, let's just forget about, I have
 to install something on there to

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 get that to work.

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 Let's just do this.

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 All right, so this one here is wired
 previously before this video.

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 I gave it a static IP
 address of 444444.2.

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 So I just know that's the one
 that's connected to KeithNet.

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 If I go over here to my other VM, wired
 settings, select the second net

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 card, IPV4, and give
 it a manual address.

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 Let's just say in the same
 network, 444444.3.

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 Just making that up
 as an IP address.

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 All right, a lot of times you have to
 shut off the net card and turn it

0:16:57.560000 --> 0:17:02.740000
 back on again. All right, so if this
 worked, if these two virtual machines

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 are actually on the same internal network,
 I should now be able to ping

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 them. They should be able
 to ping each other.

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 Let's find out, ping,
 444444.3, and I can.

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 So my first Ubuntu VM on the left is
 now successfully pinging the second

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 Ubuntu VM on the right, and that's
 all internal to VirtualBox.

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 It's not actually going outside on
 any real physical network at all.

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 So that concludes this video demonstration
 of just how easy it is to create

0:17:44.680000 --> 0:17:47.420000
 virtual machines.

0:17:47.420000 --> 0:17:53.060000
 Thank you for watching, and I hope
 that you found it to be useful.