Networking & Content Delivery

Tag: Application Load Balancer

How to securely publish Internet applications at scale using Application Load Balancer and AWS PrivateLink

If you have applications spread across multiple Virtual Private Clouds (VPCs) and want to expose those applications to the Internet, you can choose from different approaches. One option is to give each VPC its own dedicated connectivity to the Internet through an attached Internet gateway. Another approach is to centralize access from the Internet through […]

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Identifying unhealthy targets of Elastic Load Balancer

Introduction The Elastic Load Balancing (ELB) service provides you with Amazon CloudWatch metrics (HealthyHostCount and UnhealthyHostCount) to monitor the targets behind your load balancers. Although the unhealthy host count metric gives the aggregate number of failed hosts, there is a common pain point when you create an alarm for unhealthy hosts based on these metrics. […]

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