Ensure Redshift clusters are not publicly accessible to minimise security risks.
This rule can help you with the following compliance standards:
This rule can help you work with the AWS Well-Architected Framework
This rule resolution is part of the Cloud Conformity Security & Compliance tool for AWS
When your Amazon Redshift clusters are publicly accessible and have a public IP address, every machine on the Internet can establish a connection to your clusters and this can increase the opportunity for malicious activity such as SQL injections or Distributed Denial of Service (DDoS) attacks.
To determine if your AWS Redshift clusters can be accessed from a public network, perform the following:
To modify your Amazon Redshift clusters configuration in order to disable public traffic so these can be privately accessible only from within your VPC, perform the following: