After 3 frustrating days dealing with service limits, I was finally successful in creating a 2 node DB VM system on Oracle Cloud.
I figured out the external IP addresses of the 2 nodes, and was successful in connecting to one of them (I didn't try the other).
But now I realize I should probably connect to the SCAN (Single Client Access Name) address rather than directly to a node. I see an internal DNS name orclrac-scan.sub05220010500.vcn1.oraclevcn.com, but I can't find a public IP address or DNS name.
How do I find the public SCAN address? (or if there isn't one, how should I be connecting to the RAC cluster from outside my VCN?)