I registered a domain with registro.br. It's a Brazilian domain, and they do things differently.
Usually, I would register a domain and the registrar would provide me with a panel to configure options for my domain. Registro.br doesn't do this. You simply point your domain to the DNS details from your host.
That's fine. Only now I'm trying to host my own site on Amazon EC2. I have no host that can give me access to CNAME records and such. I have an instance and an elastic IP.
How can I create sub-domains and CNAME records in this case?
My intention is to have
mysubdomain.mydomain.com.br point to
mysubdomain2.mydomain.com.br point to