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As I mentioned,
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this course is going to be highly practical.
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Therefore, you will need a lab,
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a place where you can practice
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and experiment with the things
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that you're going to learn in the course.
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Not only that, but having a lab is essential
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for hackers or pen testers
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because let's say you discovered a new attack
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or you want to experiment with a new attack
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or you learned something new online
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and you want to test it,
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then the perfect place for you to test this
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and practice hacking is a hacking
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or a testing lab.
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Now, to create a lab, you just need a number
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of computers with different operating systems
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and you'll need a number of networks
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if you're testing network attacks
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and if you're testing website attacks,
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then you will need to install websites
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on these computers.
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Or you can do all of this inside your computer,
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inside one machine and install everything else
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as virtual machines
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and this is what we're going to do.
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So let's say you have your computer right here.
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This is your main computer that you use every day
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to check your emails or even to watch this course.
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This computer might be running Windows, OS X or Linux.
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It doesn't really matter, it can run any operating system.
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You can keep all the programs that you love and like
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and install a virtualization software
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such as VirtualBox.
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A virtualization software allow us to create a number
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of virtual computers inside your main computer
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so we can have three or four
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or five or 10 computers all installed
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inside your main operating system
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inside your main computer.
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The really cool thing about this
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is you will not need a number of computers,
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you can do everything inside a single computer.
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So what we're going to do
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is we're gonna have a hacking machine.
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This is going to be the machine
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that we will use in order to hack
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into other machines.
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We're going to install Kali Linux on it
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and we'll talk about what that is later on.
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And we're going to have two target machines.
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These are machines that we're gonna try to hack into
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and practice hacking against.
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One of them is gonna be running Windows
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and the other one is going
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to be running an operating system called Metasploitable
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and we'll talk about that once we get to it.
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Now, it is very important to understand
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that you will not lose any functionality
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when you install an operating system as a virtual machine.
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You can use that machine exactly
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as if it's a real physical machine.
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So the really cool thing about using virtual machines,
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first of all, you're not gonna lose any functionality,
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second, all the machines are going
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to be isolated, so as we go through the course,
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we're gonna be trying to hack
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into these machines and we might actually break one of them.
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But that's fine.
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It will not affect your host machine.
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You will be able to easily fix this
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and go back to a snapshot of when the machine was working
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without affecting your main computer.
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The other cool thing is that you'll be able
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to have a number of different versions
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of each of these machines
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and you'll be able to change the configuration easily,
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change the network settings
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or switch between different states of these machines
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and so on.
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So by using virtualization,
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you will not lose any functionality
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but you will gain so many cool features.
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And the main thing to keep in mind
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is your host machine, your main computer
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will never be affected.
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It's completely isolated
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and if we break any of these machines,
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nothing will happen to your precious computer
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that you use every day.
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And this way, you can always use your host machine
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for daily use for checking emails,
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watching the videos, doing whatever you do normally
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and then use your virtual machines for hacking
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and practicing the attacks.
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And this is what I actually do.
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So you can see I have my host machine running OS X
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and I never use this for hacking.
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But right here, I have VirtualBox
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and as you can see, I have a number
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of operating systems installed on it
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and I can literally start any of them
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by selecting the one I want and just click on Start.
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Now, don't worry about this.
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I will show you how to install these virtual machines
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as we go through the course
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but what you need to do right now
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is download and install VirtualBox.
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This program.
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So you can download it from this page.
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I'm gonna include its link in the resources
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and like I said, you can install VirtualBox
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on Windows, OS X or Linux,
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so it supports all operating systems.
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Just pick your operating system from here,
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download the relevant installer
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and install it.
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Installing it is very, very simple.
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All you have to do is literally double click the installer,
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click Next, Next, Next,
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and it'll install it for you.
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Once you start it, you'll see a program similar to this
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but you will not have any virtual machines here
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so it will be empty
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and I will show you how to install all
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of these machines as we go through the course.
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One more thing to do,
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as soon as you install VirtualBox
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is to download and install the Extension Pack.
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This will give you better compatibility
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and it'll allow you to use USB devices
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on the virtual machines
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so you'll be able to use a USB mouse,
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USB keyboard and USB wireless adapters.
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Again, downloading and installing the Extension Pack
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is very, very simple.
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There is only one file.
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It's always the same file for all operating systems.
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It's the same for Windows, for Linux for OS X.
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You just have to click on the download link in here.
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Once you download that, I already have it downloaded,
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so I have it right here
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and this file will only work
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if VirtualBox is installed successfully.
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So first of all, install VirtualBox
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from these links right here like I said.
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Once you download it and install it
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and see a window similar to this,
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without these machines right here,
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we'll see how to install these later,
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then download the Extension Pack from here.
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You'll have its file similar to this file
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and only then you can double click this file
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and it'll automatically open in VirtualBox.
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As you can see, it's telling me
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that I want to install the Extension Pack.
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It's giving me the version
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which is the same version as the version
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of the VirtualBox that I downloaded.
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It has to be the same version,
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otherwise it will not work.
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I'm gonna click on Install.
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We're gonna agree to this license.
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I'm gonna put my password.
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And as you can see, it's telling us
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that the Extension Pack is installed successfully.
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So now we can go ahead
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and install virtual machines in VirtualBox.
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