1. Cloud Computing
ISY143

2. Objectives
Definition
Characteristics
Service models
Deployment models

3. NIST NIST has produced a concise document to define Cloud Computing
5 essential characteristics
3 service models
4 deployment models

4. Characteristics On-demand self-service Broad network access
Resource pooling
Rapid elasticity
Measured service

5. Service models SaaS – Software as a service
PaaS – Platform as a service
IaaS – Infrastructure as a service

6. Deployment models Private cloud Community cloud Public cloud
Hybrid cloud

7. References

8. Deep dive into AWS Amazon Web Services
EC2 provides Elastic Computing in a Cloud
IaaS service offering

9. What is available? Almost every component is available including:
Web servers
Unix/Windows servers
Database
DNS
Load Balancing
Multi-factor authentication

10. What is available? (cont.)
Remote Monitoring
Mobile Monitoring

11. Screenshots from Android AWS Console mobile app

12. What is the technology? Customized Xen hypervisor
Instances can be HVM or paravirtualized
Hardware assisted virtual machine (HVM)
Complete hardware isolation
Like a physical machine
Paravirtualization
Requires patched OS for install
No Windows support

13. AWS free tier Limited resources Can grow to beyond free
Basic charges apply automatically
First year of sign up

14. IAM Identity and Access Management Delegation of roles
Group management

15. SSH login for management
Default configuration is public/private keypair
Private key should be guarded like a physical key

16. Lab activity Create an AWS instance (in the free tier)
Manage SSH keys for login
Reconfigure SSH
Clean up

17. Lab activity (cont.)
If you’re using putty.exe to connect, following the AWS help guide
Don’t forget to convert the .pem file into a .ppk format putty.exe can use.