Questions in Networking & Content Delivery

I was reading about adding a secondary CIDR block to a VPC and noticed the following restriction: "You can't mix RFC 1918 ranges freely. If your VPC uses a 10.x.x.x CIDR block, you cannot add a secon...

Regarding API Gateway behaviour on handling integration target and endpoint URL in a VPC link and nonproxy integration case, I found it doesn't work when I only set an endpoint URL to my internal load...

We have 6 CloudFront distributions where custom domain HTTPS connections timeout, but HTTP works perfectly. The CloudFront default domain works with HTTPS. Evidence: - project7art.com normally reso...

We are a small company (50 employees). We currently run Client VPN Endpoints - VPC version which authenticates users using Federated Access to our Active Directory. We have 5 accounts in our AWS Org...

Hello, I opened a billing case regarding recurring OCBCloudFront charges of approximately $500/month. The case has been open for nearly a month, is currently marked Unassigned, and I still have not re...

I have a Lambda function whose Function URL is configured with AuthType = AWS_IAM (us-east-1). Behavior: - SigV4-signing a request to the Function URL as an IAM USER (which has lambda:InvokeFunctionU...

I'm learning about CloudFront. I've set up a distribution using the free flat-rate plan. I've created an origin pointing to my EC2 instance and created a security group allowing access from the Clou...

We are experiencing a complete outage of our AWS Client VPN endpoint. All users are unable to connect, and the AWS VPN Client shows "Waiting for identity..." indefinitely. The endpoint ID is cvpn-end...

**Route 53 UPDATE_NAMESERVER operation stuck IN_PROGRESS for weeks — cannot submit new nameserver update** I have a domain (`domain.com`) registered via Route 53, and a nameserver update operation ha...

I am trying to make changes to our VPCs and firewall configurations but I am blocked due to an orphaned ENI. eni-0c474a8977416326e It used to be used by Lambda functions, but they have all been moved...

I've had a domain on Route 53 for a couple of years and it was auto renewing with no issues. However, I've recently received an email about an upcoming price increase. The email suggests that you can ...

Does the EC2 network bandwidth specification (e.g., "Up to 10 Gbps") apply to inbound and outbound traffic separately, or is it a combined aggregate limit shared across both directions? I wasn't sure...