Questions tagged with Elastic Load Balancing
Elastic Load Balancing (ELB) automatically distributes incoming application traffic across multiple targets and virtual appliances in one or more Availability Zones (AZs).
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I am testing the new Gateway Load Balancer TCP Reset feature (announced 2026-09-02) but cannot get a TCP Reset to fire on target unhealthy. The CloudWatch metric TCP_ELB_Reset_Count (AWS/GatewayELB) s...
## What we're seeing
We have a Network Load Balancer with PROXY Protocol v2 enabled, in front of a
TCP backend that speaks a "server speaks first" wire protocol (MySQL, via
haproxy and separately via...
My AWS account cannot create Network Load Balancers. I receive:
"OperationNotPermitted: This AWS account currently does not support
creating load balancers."
I opened a support case 3 days ago but i...
## Summary
On an Application Load Balancer (HTTPS listener, `routing.http2.enabled=true`),
a `POST` request that carries **both** a large `Authorization` header
(a ~1.6 KB bearer token) **and** a req...
I have worked on deployment on single server so what process I do on each server for my Backend working on NodeJS Applications. I use to install NodeJS on the server and run the program with pm2 and ...
Hi,
The following assumptions apply:
1. AWS Shield Standard is in use
2. The ALB has a public IP address
3. The ALB only allows traffic from CloudFront (Security Group)
4. L3/L4/L7 DDoS attac...
Hello,
according to https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-cloudwatch-metrics.html
> If there are requests flowing through the load balancer, Elastic Load ...
Hi everyone,
I have the following setup:
User → CloudFront → ALB → Application (Cognito authentication enabled)
**Issue**
When initiating the Cognito login flow via:
/oauth2/authorize
the reques...
While creating the CloudFront distribution and setting the Elastic Load Balancer (ELB) domain as the origin, I forgot to modify the cache settings during the review step. When I clicked on the cache s...
I have a case where the customer was having connectivity issue to SQL DB. They are running ECS Fargate tasks which is where they noticed the connectivity failure.
Rough Forward Flow of Traffic:
ECS...
IHAC who needs to be able to support at least a 24 hour hour drain period with AWS ALB. However, currently there is maximum deregistration delay of 3600 seconds. Any workarounds recommended?
asked 8 months ago
## Summary
When a listener has both `authenticate-cognito` rules AND a `jwt-validation`
rule, the Cognito login flow breaks with ERR_HTTP2_PROTOCOL_ERROR. Removing
the `jwt-validation` rule immedia...