Hi,
I am trying to install Oracle Internet Directory(OID) by following the link, Installing and Configuring Oracle Internet Directory.
Here as a pre-requisite it requires one to have a Oracle Database installed. So i signed up for a free trial of Oracle Database on Oracle Cloud.
For OID, one has to create a schema on the Database using Repository Creation Utility (RCU), but its failing to connect to database with message
"Unable to connect to the database using the provided details. Please enter a valid hostname and port or check if the listener is up and running."
I have attached the snapshot of this below,

Please let me know if i have gone wrong anywhere.
Looking forward to some help
Thanks,
Sunil