Enforcing TLS and managing certificate rotation for RDS and Amazon Aurora PostgreSQL

A comprehensive guide to enforcing TLS encryption and managing certificate rotation for Amazon RDS and Aurora PostgreSQL. Covers enabling rds.force_ssl=1 to reject plaintext connections, configuring sslmode=verify-full for client-side server identity verification, comparing the three current RDS CA options (rsa2048-g1, rsa4096-g1, ecc384-g1), and deploying an automated CDK-based monitoring stack using Lambda, EventBridge, and CloudWatch to alert 30 days before certificate expiry. Includes a safe rotation workflow, pg_stat_ssl validation queries, common pitfalls like ORM SSL overrides, and a production-readiness checklist.

Source: https://aws.amazon.com/blogs/database/enforcing-tls-and-managing-certificate-rotation-for-rds-and-amazon-aurora-postgresql. 8 Sync News only summarizes and links out; content copyright belongs to the authors and original sources.