The world runs computers. From small to large businesses, from the CEO down to level 1 support staff, everyone uses computers. This course is designed to give you a practical perspective on computer security. This course approaches computer security in a way that anyone can understand. Ever wonder how your bank website is secure when you connect to it? Wonder how other business owners secure their network? Wonder how large data breaches happen? This is practical computer security. It will help you answer the question – what should I focus on?
About the Instructor
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Del curso dictado por University of Colorado System
Introduction to Cybersecurity for Business
191 calificaciones
University of Colorado System
191 calificaciones
Curso 1 de 4 en SpecializationCybersecurity for Business
De la lección
What is Practical Computer Security
Understand the basics of computer security for business
Conoce a los instructores
Greg WilliamsLecturer
Department of Computer Science
Hi everyone, my name is Greg Williams, I'm a lecturer in the computer
science department at the University of Colorado, Colorado Springs.
Wanted to introduce you to myself for a few minutes and tell you a little bit
about these courses that you're going to be taking and my passions in computers.
My passion in computers really started back in the 80s where
my parents said I changed my dad's computer.
It was running DOS at the time.
I changed the time on it because he couldn't figure it out.
So then when I in high school, started taking some C programming classes.
And then in college, my undergrad,
I got my information technology degree, and
then I got my masters in engineering and information assurance.
That's a computer science degree.
My passions in computer security are really identifying
malicious content and helping identify them faster.
My thesis was on identifying or identifying external data breaches,
I'm sorry, internal data breaches from external networks.
The paper was actually called external detection for internal data breaches.
That's what it was.
Anyway, going back to where I came from in security,
I loved, or I still do love playing video games.
And back in the early 2000s, we would play,
me and my friends would play Battlefield of 1942.
And there was a desert siege mod that came out and
I would rewrite the memory locations on the fly to turn
the enemies a different color so I could identify them easier.
So yes, I was a hacker back then.
But that really started me into my computer security career because
I was able to see that other people like myself, had an advantage.
And how do I stop other people from gaining that advantage.
So now, I still play video games all the time.
Love playing first person shooters, like Battlefield,
within the past week I've played Battlefield 1 and
Battlefield 4, and Diablo, all kinds of different games.
I do play games with my students occasionally so,
if you send me your gamer tag, would be after the course.
That is, after you've completed it, then we'll set up a channel, or
something like that.
Anyway, so I've been the information security officer here
at the university and the HIPAA security officer.
But my passion now is being able to apply computer
security into the systems that I manage.
So being the director of operations, which includes telecom.
It includes all networking, it includes infrastructure for a,
what we we would call medium-size university, which is 13,000 students.
It gives me the opportunity to innovate again,
we're doing some really cool things.
So I'm going to take you into the data center right now or
we're going to just look over a few of the things that get me really excited about,
computer security and also system management.
But before we do that, what I want you to understand is
that everything that you're going to learn in these courses.
If you're just taking the system management and security specialization,
or if you're taking the computer security, or
for practical computer security specialization.
What I want you to understand is that this is
practical knowledge that I've had from years of experience.
I live and breathe this stuff everyday, you're going to walk into the data
center here in a second and see that this stuff really does exist.
This is really what I'm putting into practice, not just theory.
My teams live and breathe this stuff too,
so it's a combination of learning all the time, but also practicing.
And I hope that you see that throughout these classes.
Let's go take a look at the data center.
[SOUND]
Okay, this is our primary data center.
We have a raised floor system here.
Underneath the floor is 24 inches of space,
what that does is it allows cold air from the crack units behind me here
to be pushed down through the floor and cold air going up.
What that does is that pushes the hot air up to the ceiling,
the ceiling in this room is around 17 feet
tall, but you can't tell because of the tiles.
We have quite a few stand alone servers, but
let's take you into where we have a lot of rack mount units.
This is one of our newer racks.
Each one of the racks here contains almost half a million dollars
worth of IT equipment.
Very specialized hardware and
software that goes into everything that we do here at the university.
Systems like these run and this down here, run or
maybe a department's servers and they store video on them.
Stand-alone servers for random things.
This is our SDN stack, software defined networking.
This is one of the really cool leading edge or
cutting edge technologies that is out on the market today.
It's actually Cisco ACI.
What it does is it works with virtualization and
physical systems to software, well, based on the software
route packets back and forth, and do micro segmentation on the network.
It's actually the core of our network not which
many universities have at the moment.
We're really not many more organizations.
Down at the bottom, we have some of our virtualization architecture.
We have storage in this cabinet.
Like I said in the previous couple minutes ago,
this is just our primary data center.
We have four data centers on campus.
Some have more equipment in them.
Some have less.
We also have 54 buildings on campus.
Each one of them, look around like this.
This is our networking row.
Each one of these racks or each one of these red wires
goes to a port somewhere in the building.
Orange wires go directly to servers or
rather, internal architecture.
This is our core router.
Each one of these in here go to a building.
Each building on campus is dual connected,
meaning that if somebody cuts one of the fibers, the other one kicks in.
And here's all the connections to our buildings on campus.
We have more stand-alone servers and network architecture in the back,
and then even more.
We could keep on going, but what I want you to understand out of
the entire course, as your thinking about these videos and
your watching these lectures, and doing the work.
Think about how you are implementing this technology or
how you want to learn this technology for an organization.
Feel free, email me, I'll be more than happy to take a look at whatever you have,
and I'll help you out if I can.
But keep in mind, I practice this stuff on a daily basis,
this isn't just me talking theory.
Most of the stuff that we talk about is
from situations that we've had here on campus or lessons learned.
So I will see you in the next couple weeks.
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