Hi @ilya22239, To connect your Databricks workspace to Redshift, you need to whitelist Databricks cluster IP addresses in your Redshift security group. Start by identifying Databricks IPs, which are dynamic and may require a range or dynamic solution. Configure security group inbound rules to allow traffic from these IPs and open port 5439 for Redshift. For dynamic IPs, consider VPC peering between Databricks and Redshift VPCs or associating a public IP with your Databricks cluster. Detailed guidance can be found in the [Databricks documentation](https://docs.databricks.com/en/security/network/classic/customer-managed-vpc.html).