Managed NAT Gateway
A Managed NAT Gateway is a cloud service that allows private instances in a virtual network to access the internet or other external networks while preventing inbound connections from the internet, ensuring security and scalability. It automatically handles network address translation (NAT) and traffic routing without requiring manual configuration or maintenance of underlying infrastructure. This service is commonly offered by cloud providers like AWS, Azure, and Google Cloud as part of their networking solutions.
Developers should use a Managed NAT Gateway when deploying applications in private subnets that need outbound internet access for updates, API calls, or data fetching, while maintaining security by blocking unsolicited inbound traffic. It is essential for scenarios like microservices architectures, data processing pipelines, or compliance requirements where instances must remain isolated from direct public exposure. Learning this skill is crucial for cloud infrastructure roles, as it simplifies network management and reduces operational overhead compared to self-managed NAT solutions.