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VPC (Config (Subnets (Address Space (Last and First 4 reserved), AZ,…
VPC
Config
Subnets
AZ
Public vs Private
Address Space
Last and First 4 reserved
Address Space
Region
Endpoints (S3)
Peering
Networking
Internet
Internet Gateway
Instances need public IP
Need routes in table to IGW (0.0.0.0/0)
Security allows traffic through ports
NAT
NAT Instance (old way)
Disable Src/Dest Checks
You manage
NAT Gateway (new way)
AWS managed
Some limitations (endpoints etc)
VPN
Virtual Private Gateway
Customer Gateway
Elastic Network Interface
eth0
Primary Private IP
Auto-assigned Public IP/DNS Host
DNS Hostname
Additional Private IP
additional ENI
Elastic IP (Public)
Associated with ENI
Contrast "Classic" - Instance Stop Behavior
Route Tables
Security
NACL
Stateless Rules (Must allow return port)
Allow or Deny
Attaches to Subnet
SG
Stateful (Don't need return port)
Attaches to ENI
Allow-only
IAM