Virtual Private Cloud

From https://www.cloudflare.com/learning/cloud/what-is-a-virtual-private-cloud/

(A Private Cloud hosted in a public cloud)

• A Virtual Private Cloud (VPC) is a secure, isolated private cloud hosted within a public cloud. One can run code, store data, host websites, and do anything else they could do in an ordinary private cloud, but the private cloud is hosted remotely by a public cloud provider. VPCs combine the scalability and convenience of public cloud computing with the data isolation of private cloud computing.

Public Cloud vs Private Cloud

• Mutlitenancy

• Private clouds are single-tenant

How is a VPC isolated within a public cloud?

• Subnets

• VLANs

• VPN

• NAT

• BGP

Advantages to using a VPC instead of a private cloud

• Scalability

• Easy Hybrid Cloud deployment

• Better Performance

• Better Security

Questions for Understanding

• How can one host within a VPC any services that need to be public?

• What are examples of services that would live in the publicly-accessible part of the VPC? The privately-accessible part?

  • Security and infrastructure would be in the publicly accessible side of a VPC while

  • NAT would be private-facing

• What are the trade-offs of using a VPC vs traditional infrastructure?

  • Using a VPC, one can better leverage the security and resources of being public

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