ec2.us-east-1.amazonaws.com endpoint resolving to private IP address

Question

While troubleshooting an issue our developers noticed that in one of our subnets ec2.us-east-1.amazonaws.com is resolving to private IP addresses in our subnet instead of the normal public IP addresses. Strangely enough it appears that it is only happening for the ec2.us-east-1.amazonaws.com endpoint. The s3.us-east-1.amazonaws.com resolves correctly as does the ec2.us-east-2.amazonaws.com endpoint.

Is there anything we can do on our end to resolve this other than tearing down this subnet and recreating a new one?

Accepted Answer

I found the answer, it appears that it created a private DNS endpoint to the EC2 instance by default when creating the VPC endpoints. I deleted that private DNS name and it is working now.

ec2.us-east-1.amazonaws.com endpoint resolving to private IP address

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