In the AWS CLI application, it naturally assumes that a user is working with an AWS device. So it defaults the ports to 443 and to https traffic.
In order to properly access the buckets on an ECS array, it is necessary to specify to the endpoint. The connection is to ECS and not AWS by using the following options for the command.
Example:
# aws --no-verify-ssl s3 ls --endpoint-url https://10.0.0.1:9021 s3://test/