Virtual Private Cloud (VPC) in AWS or Cloud Computing

Basic idea of VPC in AWS

1. Could Computing with AWS
(Amazon Web Services): Virtual
Private Cloud (VPC)
Dr ManzurAshraf
2023
Federation University Australia

3. Default VPC when you make an AWS account

4. Default VPC when
creating EC2 Instance

12. Resources like EC2, Database (They need IP addresses)

13. Subnet within VPC

16. How many IP addresses we can assign within this range of IP in a VPCSay 6 EC2 instances need 6 IP addresses in this figure
On top of it, we need databases that also need
IP addresses … So on..

18. Go To cidr.xyz

19. In this Range!!!

21. NAT Gateway under your public subnet can be communicated by private subnet and
it can contact to Internet gateway for internet access for your resource access (downloads etc)

23. Last Class: 3 use cases of Cloud Adoption
Now Try To Relate ….

24. Adoption Usecase1: Bursting On-premise/
Private Cloud to Public Cloud
•Public cloud infrastructure is
leveraged to address capacity
spikes
•Web application running on-
premise spills over to public cloud
with additional web servers during
peaks and scales down when
demand subsides
•Load balancers adds/removes
public cloud resources
automatically
•Enterprise apps scale quick
without incurring additional capex
on-premise and pay for what they
use on public cloud
© Copyright IBM Corporation 2016 24

25. Adoption Usecase2: Production mission
critical application scales securely and
managed for compliance
•Private cloud is leveraged to
host production mission
critical application
•Online banking application
requiring PCI compliance
deployed in private cloud
based on customer driven
security policies and firewall
separation
•Private cloud provides
traditional IT security and
compliance levels with cloud
automation and cost
economies
•Pattern based application can
scale quick as needed
© Copyright IBM Corporation 2016 25
web3
web1
web2
Private Cloud (eg: SCE+, Softlayer)
Web Application
(Physical/Virtualised)
GW
LB1
LB2
App
DB
Load Balancer Pool
Payment GW
Service Mgmt/
Orchestration
Security/Compliance

26. Adoption Usecase3: Integrating Hosted private cloud
with Traditional IT
•Certain legacy infrastructure
always have to stay on-
premise on traditional data
center
•SAP application landscape
split across hosted private
cloud with virtualised
infrastructure communicating
with production on legacy
platform hosted on-premise
•Application is integrated
across hosted private cloud to
traditional IT
•Service management
processes are integrated
© Copyright IBM Corporation 2016 26