In this section of the course, I'm going to show you how to hack.
Now, before we get started, please note you don't have to learn Kali Linux for the CCNA exam, but
in this section, I'm going to show you practically how to hack networks using Kali or Kali Linux, if you
prefer.
I think you're going to learn a lot more and understand a lot more if I practically demonstrate man
in the middle attacks, rogue DHCP service, denial of service attacks, and various other attacks practically
using Kali Linux.
So rather than just talking about this, rather than just showing you pictures or PowerPoint slides,
I'm going to show you practically how you can hack networks very, very easily.
We're going to start with some basic attacks.
We're going to send DTP messages into a network and make sure that our Kali Linux host can form a trunk
with a switch.
We're going to send BPDUs into the network to make sure that our Kali Linux host becomes the spanning
tree root.
I'm going to show you a whole bunch of attacks.
It's really important that you lock down networks.
It's really important that you configure your networks properly to stop these kind of attacks.
Now, if you're studying for the CCNA exam, make sure that you understand the principles of security.
Make sure that you understand that we need to teach users or non-technical people that they shouldn't
simply open up an email.
So if someone sends them an email saying, you need to click on this link, we need to teach people
not to do that.
That's a classic phishing attack.
So an attacker will send an email to someone in your organization saying click on this link, for instance,
to see a really cute picture of a cat or video of a cat or something.
If someone clicks on that, it takes them to a dodgy website, which allows an attacker to take remote
control of a user's PC, make sure that you educate users so that they know they shouldn't just click
on any email.
I have this kind of problem at home as an example.
My wife is not technical.
My kids are young.
I need to teach them not to simply just go to any website because they could get into trouble.
Don't just open any email attachment you need to educate users, which could be your family, could
be an enterprise that they shouldn't just open attachments.
They shouldn't just go to any website.
Now, again, in the section, I'm going to show you various types of attacks.
You don't have to learn Kali Linux for the exam, but understand the principles and understand very
importantly how to implement DHCP snooping and dynamic ARP inspection.
If you short of time watch the dynamic ARP inspection video, watch the DHCP snooping video.
Those are the most important videos.
Make sure that you understand the Cisco configuration of how to stop attacks.
Port security options like that.
You don't have to learn how to attack.
You need to learn how to protect networks.
OK, so let's get started and I'm going to show you how to attack networks using Kali Linux.