Architecture
Change Management

Limit public IP addresses, centralize network access through ingress proxies

The use of public IP address by services running in the cloud should be restricted.

Summary

Traffic from the public internet to services running on the cloud should be centralized through ingress proxies. By centralizing inbound network access, you gain greater control and manageability over your network. You can enforce security policies and access controls in a single location, which can simplify network management and reduce the risk of misconfigurations. This reduces the attack surface to external actors whose only access is to cloud resources through public endpoints. A proxy can also provide us with centralized visibility into all inbound traffic. There are additional performance and scalability benefits to a centralized ingress proxy. Caching frequently accessed content and distributing traffic across multiple backend servers/services can help ensure that services are highly available and responsive, even under heavy load.

Applicable To

Always

Resources

VPC

Maturity

Medium

Functions
Security
CSPS

AWS

Author

Adam Cotenoff

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