Linux Programming WorkSheets, Summaries of Linux skills

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By: Sarvesh Singh

(19BCA1314)

Cloud Computing

Overview

● What is the cloud computing? ● History of Mobile Computing ● Service Models ● Deployment Models ● Architecture ● Security ● Cloud Clients ● Issues ●Why its important?

What is Cloud Computing?

●

Allows users to deal

with the software

without having the

hardware.

●

Everything is done by

remote, nothing is

saved locally.

Characteristics

● Empowerment ● Agility ● API ● Cost ● Device and location independence ● Visualization ● (^) Multi-tenancy ● Reliability ● Scalability and Elasticity ● Security ● Maintenance

Service Models

● Infrastructure as a Service (IaaS)

• (^) Basic, service users maintain software ● Platform as a Service (PaaS)
• (^) Users are given software and hardware automatically ● Software as a Service (SaaS)
• (^) All software and hardware is transparent
• (^) User only knows their own access point

Deployment Models

● Public cloud

• (^) Done by service providers ● Community cloud
• (^) organizations from a specific community with common concerns ● Private cloud
• (^) operated solely for a single organization ● Hybrid cloud
• (^) composition of two or more clouds (private, community or public)

Cloud Engineering

● The application of engineering disciplines to cloud computing ● High level concerns

• (^) Commercialization
• (^) Standardization ● Governance in
• (^) Conceiving
• (^) Developing
• (^) Operating
• (^) maintaining

Security and privacy

●

Data protection

●

Physical Control

●

Identity management

●

Physical and personnel security

●

Availability

●

Application security

●

Privacy

●

Legal issues

Other Issues

● Abuse

• (^) a banking trojan illegally used the popular Amazon service as a command and control channel that issued software updates and malicious instructions to PCs that were infected by the malware ● (^) Open source
• (^) provided the foundation for many cloud computing implementations ● (^) Open standards
• (^) Some vendors have adopted others' APIs and there are a number of open standards under development, with a view to delivering interoperability and portability ● (^) Sustainability
• (^) often assumed to be a form of "green computing", there is as of yet no published study to substantiate this assumption

Cloud Clients

●

Google Chromebook

●

Web browsers

●

Company specific

applications

Thank You!