Networking
NAT gateway
Quick answer
A NAT gateway lets instances in a private subnet reach the internet without being reachable from it.
A NAT gateway lets instances in a private subnet reach the internet without being reachable from it.
Why it matters
In BYOC deployments it is frequently the largest single line item, because every image pull and package download crosses it and is billed per gigabyte.
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Related
Security groupA security group is a stateful virtual firewall controlling inbound and outbound traffic for cloud instances.SubnetA subnet is a segment of a virtual network's IP address range, typically classified as public or private.VPCA VPC is an isolated virtual network within a cloud provider, with its own address space and routing.