How can one claim a subdomain of oracle.com?

Question

I've seen organisation unrelated to Oracle that point (via a CNAME record) one of their hostnames to a subdomain of oracle.com, which presumably resolves to a server on Oracle Cloud Infrastructure. For instance,

gucs9j.universityofcalifornia.edu

has a CNAME record that points to

bigip-gucs9j-universityofcalifornia.oracle.com

However, even after scanning the Oracle Cloud Infrastructure documentation, I'm still unaware of a way to claim such a subdomain.

Is it possible? Did it use to be possible but no longer is? If it is possible, what Oracle Cloud Infrastructure service allows one to claim one? Or is this not related to Oracle Cloud Infrastructure at all?

Answer 1

You cannot 'claim' or create a new DNS record under oracle.com, its a private space. Also, what is maybe adding to the confusion is that an instance created in OCI generally gets a FQDN of instancename.subnetname.vcnname.oraclevcn.com - however, this is an internal only address and resolves only within the VCN is was created in. To have this resolve (and be accessible) externally, it needs a public IP, and you would need to create an appropriate DNS record using your own registered domain name and point it to the public IP address.