FedRAMP High Baseline defines strict security controls for systems handling the most sensitive data in government and high-risk environments. For ingress resources—your API gateways, load balancers, and inbound network paths—it demands a higher level of protection than standard configurations. Every ingress rule must be justified, documented, and compliant with NIST guidelines. There’s zero room for open ports without strong authentication, encryption, and continuous monitoring.
To meet FedRAMP High Baseline requirements, ingress resources must implement TLS 1.2 or higher across all connections. Cipher suites must align with FIPS 140-2 validated modules. All inbound traffic must be inspected with intrusion detection and logging tools that retain records for at least 12 months. The rules are explicit: deny by default, allow by exception. This policy must be automated, not enforced by tribal knowledge.
Network segmentation is mandatory. Public ingress points go through hardened DMZ configurations. Internal ingress passes through multiple security groups and ACL layers. Role-based access controls govern every configuration change, with multi-factor authentication required for admin-level ingress modifications.