Network - VPC - VPC to VPC Connectivity Flashcards
What is VPC peering?
AWS provided connectivity between two VPCs
When would you use VPC peering?
when multiple VPCs need to communicate without touching the internet
What are some cons of VPC peering?
transite peering is not supported
How is VPC peering setup?
a VPC request is made and the accepter accepts the request
What is AWS Privatelink?
connectivity between VPCs and or AWS services using interface endpoints
When would I use Privatelink?
use the AWS backbone instead of the internet to reach other AWS services and remain private
What are some pros and cons of Privatelink?
redundant, uses the AWS backbone; inter-region VPC peering
How is AWS Private Link established?
create endpoint for needed AWS or market place service in all needed subnets; access via the provided DNS hostname
What is an interface endpoint?
elastic network interface with an private IP
How is an interface endpoint create?
uses DNS entries to redirect traffic
Which products use interface endpoints?
API gateway; CloudFormation; Cloudwatch
How are interface endpoints secured?
security groups
What is a Gateway Endpoint?
a gateway that is a target for a specific route
How is a gateway endpoint created?
uses prefix list in the route table to redirect traffic
Which products use gateway endpoints?
S3 and DynamoDB
