What is Amazon ALB?โบ
Amazon ALB is a web service for handling application traffic. It is an elastic load balancer aiding users to route incoming traffic to multiple Amazon EC2 instances in numerous Availability Zones. It helps organize traffic between microservices, clients, and services safely. It has a built-in support system for HTTP/2, WebSockets, SSL, and direct traffic to diverse ports on the same host.
What benefits does Amazon ALB offer?โบ
Amazon ALB benefits users by being a simple and efficient service to use. In addition, it provides excellent security, fault tolerance, and more availability. The other benefits are path-based routing, HTTPS, server name indication (SNI), sticky sessions, built-in IPv6 support, host header or path of request tracing, redirects, automatic failover, fixed responses, Websockets, and TLS offloading.
What security features does Amazon ALB provide?โบ
Amazon ALB offers additional security to the load balancers using Amazon Private Virtual Network Cloud. The many security features are Transport Layer Security (TLS) termination, Authentication and Authorization, a Web Application Firewall (WAF), Access logs, IPv6 support, and built-in DDoS protection by integrating with Amazon CloudFront and Amazon Route 53.
How does Amazon ALB work?โบ
Amazon ALB allocates incoming traffic across multiple target servers like EC2 instances or containers. The traffic distribution depends on a set of rules from the load balancer configuration. These rules rest on the incoming request content, including the path, host header, or other characteristics of the request, like the client IP address.
How can I use Amazon ALB for my web application?โบ
To use Amazon ALB for a web application, one has to create an ALB from the Elastic Load Balancing service of the management console. Then construct it to route incoming traffic to target servers like EC2 instances or containers. Creating Listener rules and AWS Management Console like AWS CLI or the AWS SDKs helps with the process. Update DNS and configure security group to allow incoming traffic.