**To generate an authentication token** This example generates an authentication token for use with IAM database authentication:: aws rds generate-db-auth-token \ --hostname aurmysql-test.cdgmuqiadpid.us-west-2.rds.amazonaws.com \ --port 3306 \ --region us-east-1 \ --username jane_doe Output:: aurmysql-test.cdgmuqiadpid.us-west-2.rds.amazonaws.com:3306/?Action=connect&DBUser=jane_doe&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIESZCNJ3O4KG2KUA%2F20180731%2Fus-east-1%2Frds-db%2Faws4_request&X-Amz-Date=20180731T235209Z&X-Amz-Expires=900&X-Amz-SignedHeaders=host&X-Amz-Signature=5a8753ebcfc29a1a2c724e566779721ae6c49d6ec6e3f427191fa41aeb32f0b4