Cloud Security Unit 2

2. INTRODUCTION

3. What is Cloud Computing?
B.Tech CSE - NMREC - CLOUD SECURITY 3

4. What is Cloud Computing?
B.Tech CSE - NMREC - CLOUD SECURITY 4

5. Everything on the
cloud
B.Tech CSE - NMREC - CLOUD SECURITY 5

6. Why Cloud Computing
B.Tech CSE - NMREC - CLOUD SECURITY 6

7. History and Origins
B.Tech CSE - NMREC - CLOUD SECURITY 7

8. Essential Characteristics Cloud Computing
B.Tech CSE - NMREC - CLOUD SECURITY 8

9. B.Tech CSE - NMREC - CLOUD SECURITY 9

10. Cloud Service Layers
B.Tech CSE - NMREC - CLOUD SECURITY 10

11. Cloud Service Models Definition
B.Tech CSE - NMREC - CLOUD SECURITY 11

12. Cloud Service Models
Characteristics
B.Tech CSE - NMREC - CLOUD SECURITY 12

13. Inside a CLoud
B.Tech CSE - NMREC - CLOUD SECURITY 13

14. B.Tech CSE - NMREC - CLOUD SECURITY 14

15. Cloud Service Models Comparision
B.Tech CSE - NMREC - CLOUD SECURITY 15

16. Cloud Implementation Types
B.Tech CSE - NMREC - CLOUD SECURITY 16

17. Public Cloud
B.Tech CSE - NMREC - CLOUD SECURITY 17

18. Private Cloud
B.Tech CSE - NMREC - CLOUD SECURITY 18

19. Community Cloud
B.Tech CSE - NMREC - CLOUD SECURITY 19

20. Hybrid Cloud
B.Tech CSE - NMREC - CLOUD SECURITY 20

21. B.Tech CSE - NMREC - CLOUD SECURITY 21

22. B.Tech CSE - NMREC - CLOUD SECURITY 22

23. B.Tech CSE - NMREC - CLOUD SECURITY 23

24. B.Tech CSE - NMREC - CLOUD SECURITY 24

25. B.Tech CSE - NMREC - CLOUD SECURITY 25

26. B.Tech CSE - NMREC - CLOUD SECURITY 26

27. B.Tech CSE - NMREC - CLOUD SECURITY 27

28. B.Tech CSE - NMREC - CLOUD SECURITY 28

29. B.Tech CSE - NMREC - CLOUD SECURITY 29

30. B.Tech CSE - NMREC - CLOUD SECURITY 30

31. B.Tech CSE - NMREC - CLOUD SECURITY 31

32. B.Tech CSE - NMREC - CLOUD SECURITY 32

33. B.Tech CSE - NMREC - CLOUD SECURITY 33

34. B.Tech CSE - NMREC - CLOUD SECURITY 34

35. B.Tech CSE - NMREC - CLOUD SECURITY 35

36. B.Tech CSE - NMREC - CLOUD SECURITY 36

37. B.Tech CSE - NMREC - CLOUD SECURITY 37

38. B.Tech CSE - NMREC - CLOUD SECURITY 38

39. B.Tech CSE - NMREC - CLOUD SECURITY 39

40. B.Tech CSE - NMREC - CLOUD SECURITY 40

41. B.Tech CSE - NMREC - CLOUD SECURITY 41

42. B.Tech CSE - NMREC - CLOUD SECURITY 42

43. B.Tech CSE - NMREC - CLOUD SECURITY 43

44. Cloud Computing
Architecture
B.Tech CSE - NMREC - CLOUD SECURITY 44

45. As we know, cloud computing technology
is used by both small and large organizations to store the
information in cloud and access it from anywhere at any
time using the internet connection.
• Cloud computing architecture is a combination
of service-oriented architecture and event-driven
architecture.
• Cloud computing architecture is divided into the
following two parts –
o Front End
o Back End
B.Tech CSE - NMREC - CLOUD SECURITY 45

46. The below diagram shows the architecture of cloud
computing -
B.Tech CSE - NMREC - CLOUD SECURITY 46

47. Front End
The front end is used by the client. It contains client-side
interfaces and applications that are required to access the
cloud computing platforms. The front end includes web
servers (including Chrome, Firefox, internet explorer,
etc.), thin & fat clients, tablets, and mobile devices.
Back End
The back end is used by the service provider. It manages
all the resources that are required to provide cloud
computing services. It includes a huge amount of data
storage, security mechanism, virtual machines, deploying
models, servers, traffic control mechanisms, etc.
B.Tech CSE - NMREC - CLOUD SECURITY 47

48. Components of Cloud Computing
Architecture
There are the following components of cloud computing
architecture -
a. Client Infrastructure
Client Infrastructure is a Front end component. It
provides GUI (Graphical User Interface) to interact with
the cloud.
b. Application
The application may be any software or platform
that a client wants to access.
c. Service
A Cloud Services manages that which type of service
you access according to the client’s requirement.
B.Tech CSE - NMREC - CLOUD SECURITY 48

49. Cloud computing offers the following three type of services:
i. Software as a Service (SaaS) – It is also known as cloud
application services. Mostly, SaaS applications run directly through
the web browser means we do not require to download and install
these applications. Some important example of SaaS is given below.
Example: Google Apps, Salesforce Dropbox, Slack, Hubspot, Cisco
WebEx.
ii. Platform as a Service (PaaS) – It is also known as cloud
platform services. It is quite similar to SaaS, but the difference is that
PaaS provides a platform for software creation, but using SaaS, we
can access software over the internet without the need of any platform.
Example: Windows Azure, Force.com, Magento Commerce Cloud,
OpenShift.
B.Tech CSE - NMREC - CLOUD SECURITY 49

50. iii. Infrastructure as a Service (IaaS) – It is also known as cloud
infrastructure services. It is responsible for managing applications
data, middleware, and runtime environments.
Example: Amazon Web Services (AWS) EC2, Google Compute
Engine (GCE), Cisco Metapod.
iv. Runtime Cloud -
Runtime Cloud provides the execution and runtime
environment to the virtual machines.
v. Storage -
Storage is one of the most important components of cloud
computing. It provides a huge amount of storage capacity in the
cloud to store and manage data.
B.Tech CSE - NMREC - CLOUD SECURITY 50

51. vi. Infrastructure -
It provides services on the host level, application level,
and network level. Cloud infrastructure includes hardware and
software components such as servers, storage, network devices,
virtualization software, and other storage resources that are needed to
support the cloud computing model.
vii. Management -
Management is used to manage components such as
application, service, runtime cloud, storage, infrastructure, and other
security issues in the backend and establish coordination between them.
viii. Security -
Security is an in-built back end component of cloud computing.
It implements a security mechanism in the back end.
ix. Internet
The Internet is medium through which front end and back end
can interact and communicate with each other.
B.Tech CSE - NMREC - CLOUD SECURITY 51

52. How does Cloud Computing Work?
Assume that you are an executive at a very big corporation. Your
particular responsibilities include to make sure that all of your
employees have the right hardware and software they need to do their
jobs. To buy computers for everyone is not enough. You also have to
purchase software as well as software licenses and then provide these
software’s to your employees as they require. Whenever you hire a new
employee, you need to buy more software or make sure your current
software license allows another user. It is so stressful that you have to
spend lots of money.
But, there may be an alternative for executives like you. So, instead of
installing a suite of software for each computer, you just need to load one
application. That application will allow the employees to log-in into a
Web-based service which hosts all the programs for the user that is
required for his/her job. Remote servers owned by another company
and that will run everything from e-mail to word processing to complex
data analysis programs. It is called cloud computing, and it could change
the entire computer industry.
B.Tech CSE - NMREC - CLOUD SECURITY 52

53. In a cloud computing system, there is a
significant workload shift. Local
computers have no longer to do all the
heavy lifting when it comes to run
applications. But cloud computing can
handle that much heavy load easily and
automatically. Hardware and software
demands on the user's side decrease.
The only thing the user's computer
requires to be able to run is the cloud
computing interface software of the
system, which can be as simple as a Web
browser and the cloud's network takes
care of the rest.
B.Tech CSE - NMREC - CLOUD SECURITY 53

54. Thank
You
B.Tech CSE - NMREC - CLOUD SECURITY 54