Networking & Content Delivery
Author: Tim Franklin
Tim Franklin is a Senior Technical Account Manager with the Retail and Consumer Packaged Goods team at AWS Enterprise Support. He brings more than 20 years of IT experience across network engineering, product management, and DevOps. He focuses on networking and operational excellence, helping enterprise customers build and operate resilient, scalable architectures that stay available through peak demand. Outside of work, Tim enjoys home automation, writing about technology, and exploring the Pacific Northwest outdoors.
Extending NLB health checks for RADIUS using an Amazon ECS witness
Network Load Balancer health checks confirm that a RADIUS server is reachable, not that it can authenticate a user, so a server with a failed identity store keeps receiving traffic. This post walks through an open-source reference solution that closes the gap with a single Amazon ECS witness that runs application-layer RADIUS probes and reconciles NLB target group membership directly.