- [Instructor] We're going to go ahead
and launch our first EC2,
but before we do that,
there are a couple things you need to know.
The Amazon Elastic Compute Cloud, or EC2,
is a core service offering by AWS.
It also serves as a foundation for other AWS services,
as it is a source of computing power.
An EC2 instance is a virtual server
or machine running in your AWS environment,
and we'll see how to do that in a little bit.
They've got a wide range of users,
so from website hosting to gaming,
mail servers, pretty much the same workloads
that you run on your on-prem servers,
you can do that on an EC2.
However, because it's a virtual machine,
you can create it and delete it,
unlike your on-premise servers.
EC2s are elastic because you can easily increase
or decrease the number of instances you have,
as well as the size of the instance.
So if you have a really large instance
and you see that it's being underutilized,
rather than, you know, deleting it
and then recreating it and moving your workloads
to row and backing up, you can just resize it
and it'll continue working as is.
You can choose the size of your machine,
and therefore the computing power
and launch within minutes into your desired
availability zone.
EC2s are infrastructure-as-a-service or IaaS.
The EC2 is a service that runs on a physical server.
This physical server would then be the host for the EC2s.
Now, we do have complete autonomy in deciding
what's happening on our EC2s
or on our virtual servers, not on the physical servers.
The only thing that we can decide
for the physical server would be,
do we want to share with other EC2s?
Or do we just want a dedicated host for this EC2?
We can decide the type of operating system
that we want on the EC2, we can decide
any startup customization options,
which we will do.
We will decide on what size of disk you want,
size of RAM, so on and so forth.
Most server OSs, such as Windows Server, Ubuntu,
and RedHat are supported.
You can definitely control traffic ingress
and egress into your EC2 instances to ensure
that only the right people can access your machines.
Okay, let's go do it.