What Are Patch Baselines

Custom patch baselines allows you greater control over which patches are approved or rejected for your environment. … Also, the predefined baselines assign a compliance level of Unspecified to all patches installed using those baselines.

How does AWS patching work?

Patch Manager automates the process of patching Windows and Linux managed instances. Use this feature of AWS Systems Manager to scan your instances for missing patches or scan and install missing patches. You can install patches individually or to large groups of instances by using Amazon EC2 tags.

How do I use AWS Patch Manager?

1. Launch new Windows instances.
2. Create a custom patch baseline.
3. Set the patch group for the custom patch baseline.
4. Create a maintenance window.
5. Register targets for the maintenance window.
6. Register a task for the maintenance window.
7. Verify the patch compliance report.