Posted On: Nov 21, 2024
Application Load balancer (ALB) now supports advertise Certificate Authority (CA) subject name stored in its associated Trust Store to simplify the certificate selection experience. By enabling this feature, the ALB will send a list of CA subject names to clients attempting to connect to the load balancer. Clients can use this list to identify which of their certificates will be accepted by the ALB, which reduces connection errors during mutual authentication.
You can optionally configure the Advertise CA subject name feature using Amazon APIs, Amazon CLI, or the Amazon Web Services Management Console. This feature is available for ALBs in the Amazon Web Services regions, including the Amazon Web Services China (Beijing) Region, operated by Sinnet and the Amazon Web Services China (Ningxia) Region, operated by NWCD. To learn more, refer to the ALB documentation.