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Load Balancers, Load Balancer - Coggle Diagram
Load Balancers
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Network Load Balancer
TCP, TLS (secure TCP), UDP--Layer 4
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Alias
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Let you route traffic to selected AWS resources, such as CloudFront distributions and Amazon S3 buckets.
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SNI
SNI solves the problem of loading multiple SSLcertificates onto one web server (to servemultiple websites)
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Health Checks
monitor the health of the compute resources, so that the load balancer sends requests only to the healthy ones.
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Connection Draining
ELB stops sending requests to instances that are de-registering or unhealthy while keeping the existing connections open, use connection draining
The maximum timeout value can be set between 1 and 3,600 seconds (the default is 300 seconds).
When the maximum time limit is reached, the load balancer forcibly closes connections to the de-registering instance.
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idle timeout
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If no data has been sent or received by the time that the "idle timeout" period elapses, the load balancer closes the connection.
Classic
Load Balancer
Supports
TCP (Layer 4),
HTTP & HTTPS (Layer 7)
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Elastic Load Balancing automatically distributes your incoming traffic across multiple targets, such as EC2 instances, containers, and IP addresses, in one or more AZ.
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Load Balancer
Listener1
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- Before you start using your LB, you must add one or more listeners.
- A listener is a process that checks for connection requests
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