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What is ELB and ALB in AWS?

Last updated on September 25, 2022 @ 5:38 pm

In the world of cloud computing, Elastic Load Balancing (ELB) and Amazon CloudFront are two of the most popular services. ELB is a load balancer that distributes incoming requests across multiple servers.

Amazon CloudFront is a content delivery network (CDN) that provides a fast, reliable, and scalable way to distribute content across the Internet.

What is ELB?

An ELB is a load balancer that distributes incoming requests across multiple servers. ELBs provide an easy way to scale your web application.

ELBs allow you to load balance traffic between multiple Amazon Web Services (AWS) instances. ELBs are a great way to distribute traffic among different parts of your web application.

How does ELB work?

When a user requests a page from your web application, ELB routes the request to the appropriate AWS instance. ELB forwards the request to the correct server based on the user’s IP address and port.

ELB keeps track of which server the request is on and returns the response from that server.

What are the benefits of using ELB?

Some benefits of using ELB include:

ELB is easy to set up.

ELB is easy to use.

ELB scales easily.

ELB is reliable.

What are the drawbacks of using ELB?

There are some drawbacks of using ELB that you should be aware of:

ELB can be resource intensive.

ELB only load balances HTTP traffic.

What are the benefits of using Amazon CloudFront?

Some benefits of using Amazon CloudFront include:

Amazon CloudFront provides a fast, reliable, and scalable way to distribute content across the Internet.

PRO TIP: AWS ELB and ALB are both load balancing services that route traffic to your AWS resources. Both services are highly available and scalable, and can be used to route traffic to Amazon EC2 instances, Amazon ECS containers, and IP addresses. However, there are some important differences between the two services.

ALB is a newer service that offers additional features such as path-based routing and support for containerized applications. ELB is a more basic load balancing service that is best suited for simple applications.

If you are not sure which service to use, we recommend starting with ALB.

CloudFront allows you to distribute content to any device.

CloudFront delivers content using a cache-friendly architecture.

CloudFront can be used to distribute static content as well as dynamic content.

CloudFront can be used to distribute content from any AWS region.

CloudFront provides an easy way to set up your own CDN.

CloudFront can be integrated with your web application.

CloudFront provides detailed performance information.

CloudFront allows you to fine-tune your distribution.

CloudFront can be used to distribute web application content to mobile devices.

CloudFront can be used to distribute web application content to the cloud.

CloudFront can be used to distribute web application content to on-premises applications.

Conclusion

ELB and Amazon CloudFront are two of the most popular services in the world of cloud computing. ELBs are a load balancer that distributes incoming requests across multiple servers. Amazon CloudFront is a content delivery network (CDN) that provides a fast, reliable, and scalable way to distribute content across the Internet. CloudFront allows you to distribute content to any device, from any AWS region, and to integrate CloudFront with your web application.

CloudFront delivers content using a cache-friendly architecture and provides detailed performance information. CloudFront can be used to distribute web application content to mobile devices, to distribute web application content to the cloud, and to distribute web application content to on-premises applications.

Dale Leydon

Dale Leydon

Sysadmin turned Javascript developer. Owner of 20+ apps graveyard, and a couple of successful ones.