Networking & Content Delivery
Category: Elastic Load Balancing
Hostname-as-Target for Network Load Balancers
Introduction: Network Load Balancers (NLB) is the flagship Layer 4 load balancer for AWS, offering elastic capacity, high performance, and integration with AWS services like AWS Auto Scaling. NLB is designed to handle millions of requests per second while maintaining ultra-low latency, improving both availability and scalability. Network Load Balancers are widely used by all […]
Improving availability and performance for Application Load Balancers using one-click integration with AWS Global Accelerator
AWS Global Accelerator improves the availability and performance of your applications. It provides customers with a global fixed entry point to their Application Load Balancers (ALB), Network Load Balancers (NLB), EC2 instances, or Elastic IPs. AWS Global Accelerator uses the AWS global network to direct end users’ traffic to a healthy application endpoint in the […]
Accessing private Application Load Balancers and EC2 instances through AWS Global Accelerator
Many Content Distribution Networks (CDNs) offer a feature to obfuscate the source origin through functionality commonly referred to as origin cloaking. Using AWS Global Accelerator with Client IP Address Preservation capability, similar functionally can be facilitated. Private Application Load Balancers (ALBs) and private EC2 instances can be accessed through Global Accelerator in a secure and simplified manner. AWS […]
Lambda functions as targets for Application Load Balancers
As of today, Application Load Balancers (ALBs) now support AWS Lambda functions as targets. Build websites and web applications as serverless code, using AWS Lambda to manage and run your functions, and then configure an ALB to provide a simple HTTP/S frontend for requests coming from web browsers and clients. Triggering a Lambda Function from […]
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 […]
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. […]