VPC building blocks.
VPC
Virtual Private Cloud isolated network.
Subnet
Segment of VPC IP range in an AZ.
Internet Gateway
VPC egress/ingress to the internet.
NAT Gateway
Private subnet outbound internet access.
Route table
Rules for where traffic is directed.
NACL
Subnet-level stateless firewall.
Security group
Instance-level stateful firewall.
VPC Peering
Connect two VPCs privately.
Transit Gateway
Hub to connect many VPCs/networks.
PrivateLink
Private connectivity to services.
VPN connection
Encrypted link to on-premises.
Direct Connect
Dedicated network to AWS.
Elastic Network Interface
Virtual network card.
CIDR
IP range notation for networks.