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NAT Gateways and NAT Instances

AWS Cloud Practitioner to Architect: 0 to Hero

NAT Gateway

NAT (Network Address Translation) allows resources in a private subnet to connect to the internet (for updates/patches) while preventing the internet from initiating a connection with those instances.

NAT Gateway Details:

  • Managed by AWS (Highly Available).
  • Placed in a Public Subnet.
  • Assigned an Elastic IP.
  • Route table for private subnet must point to the NAT Gateway for 0.0.0.0/0.