Hey @Marc, I've created the user with a password - thx! Can you ask your colleague what do next?
I have created the Elasticache user and entered the password in my community GUI, but without permissions, it doesn't work. I'm having problems adding such a user as a principal in the trust entry for the role assigned to my EC2 instance hosting my forum. It's a normal user ARN but it's not accepting it in the editor.
@ptprog - All ports are open for testing, and I did use the endpoint URL. I found out I did not have the redis cli installed. It gives me the error saying it could not connect to 127.0.0.1. Is there something I have to configure on the EC2?