i made a redshift data warehouse with the Serverless Preview in order to make it connect to a Google Data Studio. I opened the 5439 port to every ipv6 and ipv4 on the security group, tho it still timeout. I don't know what to do, is it possible that serverless is not publicly opened? I am forced to create a cluster for open Redshift to external connections?
Thank you very much
Update:
You can now make your serverless endpoint publicly accessible:
https://docs.aws.amazon.com/redshift/latest/mgmt/serverless-connecting.html
Basically you need to set the setting Public Accessible when you create the workgroup. By default it's false.