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So now let's go to a quick, practical example.

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So here is a quick Visio diagram that I put together for you guys.

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So you understand like you know, like what your whole network might look like.

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So let's say you live in an apartment by yourself.

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You have a smartphone, you have a desktop, you have a laptop.

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And that's about it.

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Maybe you have a smart TV and you want to put that on your.

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SO as you can see in a legend in the top left, public connections or solid lines and private connections

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are the dashed line.

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So remember I told you that when you are at home, you know, you're on a private network.

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That's the network that you're all the computers in your network typically can talk to each other.

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They all have private IP addresses.

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And then what you're going to see here is that's like your laptop, your desktop computer and your smartphone

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all reach out to your router, OK?

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And through your router, you're able to access the Internet.

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Now, all the devices on your network are typically going to share the same public IP address, when

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is access to the Internet?

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This is kind of like a security through obscurity kind of thing that it kind of like unintentional security.

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So not each one of your devices has a public IP address that are not technically, you know, all individually

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reaching out.

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We're all using specific ports to reach on the Internet.

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So.

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All our traffic goes through the router out to the Internet, and then you might go into Gmail, you

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might go to com, you might go to social media.

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That's pretty much how it works.

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This is the flow, you know, of a typical home network.

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OK, so now I'm going to show you another practical example.

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It is going to be a little more complicated.

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I'm going to walk you through it.

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But it's a little bit more of a practical example of what you might see for a remote company, for example,

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like nowadays, a lot of companies are forced to work remote or the companies that already are, you

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know, thriving.

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So the next one, the next practical example that I'm going to show you is going to be kind of like

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a more like a more secure version of, you know, network when you work remotely is kind of like how

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my personal corporate network is set up.

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Over here on the left, we have, like, you know, users all over the place.

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Right.

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Abuses at their homes.

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They're on their laptops and their laptops reach out to their router and then out to the Internet.

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So each one of these days is very different places.

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We have different public IP addresses.

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You still see the connection between the user laptop and the router is private to have a private IP

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address there, want to reach out to the Internet.

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It's public.

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You see this online.

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So.

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You see at the bottom, that kind of represents my set up.

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I have a hypervisor server called Prox Monks and have a bunch of virtual machines set up on it that

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I use for work and study purposes.

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So all of those have a private connection.

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They're all on my private network at home and they reach out to the router.

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They all those virtual machines can talk to my laptop as well.

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They reach out to the router and we all share the same public IP address on the Internet.

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OK, from my network.

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So the way that we do it, we have a VPN connection.

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So we go out through the Internet with our public IP address and then we go into our Adewusi network,

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which is represented right there by the eight of US router.

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And then it goes over to our VPN server and this is where we get our private IP addresses, so right

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here you see all of our user hosts.

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We all are now on a private network, you know, in the US, and we all can talk to each other.

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So versus here where we're not on the same network and we can't really talk to each other when we all

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connect to the VPN and we go through the Internet, we go through the eight of US router and then we

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go to our VPN.

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So we all are now on the same network which has this address right here, for example.

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And then there's other servers on there that you might see in some other places.

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It might be different kinds of service.

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But more specifically, for me, this is like a more security based servers, services, and then these

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reach out to, you know, other tools using our VPN connection.

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Once one is VPN, we can then connect back on the Internet and get on to, you know, apps like Gmail

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and such or just browse the Internet.

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So that's just like a little bit more of a practical kind of advanced, semi advanced example of, you

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know, a remote base network.

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So something just to help you flex your networking muscle a little bit, make you think a little bit

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on how networking works.

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OK, so now the wrap of networking, you know, you should now have a basic understanding networking.

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And with this basic understanding, you should now be able to, you know, understand how you're hacking

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them.

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We want to set up is going to work and how your own personal network works.

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OK, so like I said, we're going to be setting up our hacking lab next.

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So you're going to download and create your hacking virtual machine and you're also going to set up

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some vulnerable targets for us to exploit.

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All from your laptop.

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We just for practice.

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I so thanks for watching this far and I'll see you guys in the next section.