Questions in Networking & Content Delivery

Hi everyone, to give context I'm trying to grasp the functionality of Route 53 when is comes to zone files, host zones, and name servers. I am having some confusion through my studies when it comes t...

My Lambda function is configured to run inside a VPC and is attached to private subnets with the appropriate security groups. However, no dedicated Elastic Network Interfaces (ENIs) are being created ...

I’m trying to clearly understand the data path for Network Load Balancer (NLB) in AWS. Specifically, in the traffic flow: Client → NLB → EC2(Target) ❓ What I observe / understand so far EC2 does n...

I recently set up a replication policy for an s3 bucket to mirror to another teams AWS account. It consists of 6 very small json files and is updated 1-3 times per week. I recently (13th Nov.) receive...

**Question:** I'm experiencing a recurring issue with my ECS cluster running on EC2 instances. Every day at exactly 00:00 UTC, all ECS tasks in the cluster simultaneously spike to 100% CPU usage for 6...

Hello, My domain was suspended because I used the wrong email during registration. I’ve already fixed it and now both the email and the registration details are correct and verified. However, my doma...

I have a java app that exposes a java stream/flux endpoint. It is set up to use http1, tls 1.3, https. If I deploy the jar in EC2 with no ALB in the middle, the client app can push through the 30K f...

TLDR: IPv6-Only ECS still does not work despite 9/29/25 announcement: https://aws.amazon.com/about-aws/whats-new/2025/09/amazon-ecs-ipv6-only-support/ # ECS Container Instances Won't Register in IPv6...

On Sept 29, AWS announced IPv6-only support for ECS: https://aws.amazon.com/blogs/containers/amazon-ecs-announces-ipv6-only-support/ Where can I find a Reference Architecture for this? What are the ...

[This](https://docs.aws.amazon.com/whitepapers/latest/building-scalable-secure-multi-vpc-network-infrastructure/direct-connect.html) AWS doc has a 10,000 foot overview of different AWS Direct Connect ...

So most of the topology is like following when we have a fleet of Firewalls behind gwlb: Traffic A to B: A -> GWLBE -> GWLB -> FW(with Geneve decapsulation/encapsulation) -> GWLBE -> B Response B to A...

Hello I created EC2 instance I got ipv4 3.90.79.230 I got ipv6 2600:1f18:2c4a:2123:4ae7:7fb:99c1:5ecd I got ec2-3-90-79-230.compute-1.amazonaws.com They resolve as http://3.90.79.230 http://[2600:1...