更新时间：2021-06-24 19:28:23
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Introducing Hybrid Cloud
The cloud's demographics
Based on abstraction
Service down clouds
Infrastructure up clouds
Differentiating service down and infrastructure up clouds
Based on services offered
Based on consumers of the services
Choosing different cloud combinations
Summary
Hybrid Cloud – Why Does It Matter?
What does the world say?
Pure-play public cloud strategy
Public cloud benefits
Need for agility
Ability to experiment without upfront cost
Reducing operational overheads
Ability to consume enhanced services
Shortcomings of a public cloud
Cost
Control/customizability
Compliance
Fear of lock-in
Hybrid cloud case study
Summary – maximizing benefits
Hybrid Cloud Building Blocks
The story of a web application
Transport level
Case 1 – without a proxy
Case 2 – with a proxy
Application level
Web tier
Application tier
Database tier
Putting it all together
Use cases of a hybrid cloud
Isolated use case
Distributed use case
Co-Existent use case
Cloud bursting
Using cognitive services
Supporting application use cases
Backup and disaster recovery in the cloud
Decoupling the tiers
Case in point – architecture of OpenStack
Services to enable a hybrid cloud
Network connectivity
DNS service
Public cloud services for hybrid deployment
Amazon Web Services (AWS)
Storage gateway
Direct connect
Route 53
Amazon EC2 run command
VMware cloud on AWS
Microsoft Azure
Azure Stack
Azure Site Recovery (ASR)
Azure Traffic Manager
Summary – setting up hybrid cloud
Architecting the Underpinning Services
Networking
Underlay network
LAN architecture
WAN architecture
Overlay networking
GRE
VXLAN
Virtual Private Network (VPN)
Encrypting data using IPSec and SSL – concepts
IPSec VPN
SSL VPN
MPLS connectivity – direct connect
Routing table
Domain Name System (DNS)
How does DNS work?
Global load balancing
Identity and Access Management (IAM)
Identity Federation
Multi-Factor Authentication (MFA)
Application components
