In this lesson, we introduce AWS Global Infrastructure with
worldwide 18 region and 54 availability zones,
present the AWS Elastic Cloud Computing Services
and the so-called EC2 services for cloning,
configuring, and securing virtual machine instance.
We will discuss the elastic concepts for adaptive processing capability and phase ball,
storage backup, and dynamically allocate IP address for these virtual machines.
We will describe the security services provided by
AWS EC2 including firewall and try with VPC,
Virtual Private Cloud for protecting and isolating virtual instance.
At the end, we'll discuss the cost performance trade off for different pricing scheme.
AWS, as cloud operates 42 available zones within 16 geographic region around the world,
with announced plan to provide eight more,
our very zone and three more region.
Agreement with Beijing and Ningxia were actually signed December 2013 which
is more than three years ago and so
it actually takes some time to build these data center and make it operational.
The Ningxia location in China is colder in the winter,
cooler in the summer.
So, you use less air condition and has a lowest utility heat ray within the region.
The worst choice of region in AWS,
allow an organization to choose hosting server close to their customer.
Even though the content area near Nijar watcher as Akamai has more than 30,000 in
cash server location but AWS data center
allows a customer to customize their virtual machines,
running the one package, and hosting there.
For Amazon EC2, you select a pre-configured,
templated image to get up and running immediately,
or you can create an Amazon Machine Images with
your own customized package including customized application,
customized library, data for cloning.
Configure security, you can configure
security and network access on your Amazon EC2 instance,
very easy with some gooey in the face.
Choosing which instance type, big, small,
and operating system Windows, Linux, you want,
you can also bring your own license and then start, terminate,
monitor as many instances on your Amazon Image as needed,
and you can using web service API,
using Java or postscript to probably control the star and star up some services of
this instance and maybe shut them down in a 24/7 kind
of rotating basis so that you can managing your instance in a program manner.
Determine whether you want to run in multiple locations and utilize
static IP address endpoint and attach
persistent block storage they call elastic storage for your instance.
So that they are backed up regularly.
Pay only the resources that you actually consumes,
like instance-per hour or data transfer.
They can also provide you with a scalability,
a scale you're processing.
Elastic computing.
Actually, EC2 stands for Elastic Computing Cloud,
E-C-2, two C there.
Enable you to increase or decrease the capacity within minutes,
not hours or day.
You can commission one,
or hundreds or even thousands of server instance simultaneously.
You control the web service API,
this instance an occasion can automate
scale themselves up and down depending on the incoming traffic.
Elastic Block Storage allows you to back up
automatically on local disk and allow you to have some free space for computing.
Local disk is not a backup.
Elastic IP address, which is a very interesting concept,
they can give you an IP address or sign or tie into an instance dynamically.
So, is not giving you a static IP address all the time.
The interesting thing here is the charging scheme of elastic IP address,
you are charged when not using it.
So, let's say you start your watcher instance for an hour then you shut it down,
the remaining 16 hour for the day you will be charged with elastic IP address using that.
But at the same time you are not charging for the computer utilization of your instance.
Programmatically we can remap those public IP address to any instance in your account.
So, maybe for maintenance reason you shut down one instance,
bring up another one,
and then you remap the IP address.
It has to be aggregated through the new instance while you maintain the other.