You know to learn and remember the cons and the cause is good to practically try things out.
So as we go through the course I'd like to spend time exploring the configurations that I talk about
and the operating systems and the settings.
And when you see something that I demonstrate anything that will that might apply to your situation
then you want to try those things out because obviously trying things out is the best way to actually
learn.
And one way to do this without MS configuring your own machine is to use a virtual environment to play
around in and to learn.
And these are also called platform the translation software or hypervisor is which is really the business
software that emulates a whole physical computer or machine and often provides multiple virtual machines
and one physical platform.
So for example and if you see here we have the hardware which would be your laptop your physical device
and then you've got the operating system here.
So that would be this operating system that you can see is Windows in this case Windows 7.
And then you have the hypervisor the software that allows you to create virtualization and this case
I've got some virtualization software and this hypervisor is virtual box.
So this is a virtual box here the hypervisor and it's running a particular operating system but it could
run many operating systems and you can see that here it is running a Windows 7 within the Windows 7.
So here we have a nice virtual environment within an environment.
This is considered to be the host and this is considered to be the guest operating system.
Now if we go back to the diagram again and this is from Wikipedia.
So yeah you can see this is a hosted It's known as a type 2 because you can have different types of
virtualization but we're talking about testing here setting up testing environments so that you can
try things out.
This is the sort of environment that we'd want to use so you can ignore this type of environment.
Now the time warm so this will be a machine your native laptop and whichever operating system you use
and you can use different operating systems if you are on Mac or if you're on Windows if you're on Linux
you can run high for viruses on all of those different operating systems and then put on a different
operating system.
Now there are lots of different virtualization software I mean the the big two really are VM Ware and
virtual box and I have as you've seen Virtual Box here and this next to it and this is what VM Ware
looks like very very similar.
And this is desktop virtualization.
This is actually being where workstation 12 player but there are others I mean this things like they
grown Hyper-V the PC but for the purposes of setting up a test environment so you can play around with
configurations and settings then really I recommend VM where Virtual Box.
Now there are two purposes for using virtual environments.
Now right now we're talking about for testing things out like to roam We're also going to talk about
how virtualization can be used as a method to give you security and privacy.
So we've got a section on that as well.
Now if you want to explore around the topic and the different types of virtualization software you can
go to this page on Wikipedia and you can see all the different types of virtualization software I mean
as you know you can see there's quite a lot of them as quite a useful site if you want to learn a little
bit more.
And the and the heart of the Lincoln Wikipedia is pretty good.
Pretty sure just tells you about virtualization if you're interested in knowing a little bit more.
The obvious question is how do you actually get these operating systems into these virtual machines.
Well one way is exactly the same as you would if you had your own laptop your own hardware you would
get a CD you put it in and you would install it just the same as you would with physical hardware.
Now you therefore can of course go by the operating system that you're looking for so if you want Windows
10 or whatever it is you go by it you get sent to CD and you put it in and you install that and I'll
show you the details of how that's done but we're just going through at the moment the different ways
of getting operating systems on.
So that's a physical CD.
Another option is you use a virtual CD and I'll show you an example of that.
So say you want the Debian operating system to be installed.
You need to.
Which is free.
You need to find the equivalent of the CD and digital versions of CDs are created and one format that
can be used is ISO.
So if you see here this is Debian by clicking here is going to enable me to download the latest Debian
ISO which is effectively a disk.
I would then start my hypervisor with this ISO in the drive.
It would boot and then I would start to install it.
So that's one option that's ISO's and disks to get them on.
Now the other option is you can you can get very conveniently pre-made virtual disks where someone has
installed it for you and they package it up into a virtual disk.
If you're interested then for example Windows machines.
Now this is a great link for Windows operating systems.
So if you go here you can download virtual machines here with XP Vista Windows 7 Windows 10.
These are test versions but that's what we use this this is for testing.
You can select here.
Select your platform so you may be using virtual baulks download and then you can have a virtual image
and that will end up looking something like what's the VM version.
This is a virtual box version you'll end up getting something like this in large file.
You can see this is 4 gig which is the virtual disk and you can just straight away run that and that's
exactly what I've done here.
I've downloaded it and I've run it and that's that's the file that I'm running.
That is Windows 7 running in Virtual Box from that file.
Very quick.
Very nice very easy.
Just download it and it's ready to use.
So that's the Windows environment and you can also get the Linux and all the other operating systems
to Linux and Linux type operating systems you can go to this Web site iceboxes dot org This is for them
way images a virtual box can go here same Web site different you R-AL And if you scroll down you can
see all the Linux top operating systems arsh Linux.
Here's an example click here.
Scroll down and there is the options the virtual box option the V.M. where option the 32 and 64 bit
version.
And if you're not sure the difference between 32 and 64 bit version then that's something for you to
do.
Google it find out what operating system you have and then download the corresponding operating system
version and you can see here the user name and password for any operating system the download is obviously
important.
Now don't worry if you don't understand about all these different operators and we're going to go through
different operating systems which are secure which are not secure.
Privacy issues to deal with them this is just to give you an understanding of setting up test environments
and how you can use virtual machines to follow me as we go through this course.
Another link for V.M. Where is this and you can find walk call virtual appliances.
So again it is Benway way images you download these and that would be.
Now this is some sort of a buntu appliance into a Linux based operating system and a couple other useful
links.
Virtual Machine.
Or check that one out.
And another useful long the jukeboxes dot org.
And you can find some some things on here.
Now of course remember well remember I haven't said that these shouldn't be trusted environments someone
else has built the virtual environment so you can't trust them that we're not using it for trust here
we're using them for testing and for playing around with things when something isn't within a virtual
machine.
It is pretty isolated from your main machine and we are so much more about that later on.
You should see these downloaded test images as purely that for testing and not for real environments
going forward when we get to that section we're going to potentially set up real virtual environments
that you can use for security and privacy.