Operating System Maintenance
In general, operating system maintenance across large numbers of EC2 instances can be managed by:
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Tools specific to each operating system, such as Microsoft System Center
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Third-party products, such as those available in Amazon Marketplace
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Using Amazon Systems Manager
Patching
You can follow SAP recommended patching processes to update your landscape on Amazon. For operating system patching, with Amazon Systems Manager Patch Manager
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Scheduling based on tags
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Auto-approving patches with lists of approved and rejected patches
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Defining patch baselines
Amazon Systems Manager Patch Manager integrates with IAM, Amazon CloudTrail, and Amazon CloudWatch Events to provide a secure patching experience that includes event notifications and the ability to audit usage. For details about the process, see How Patch Manager Operations Work
Maintenance Window
Amazon Systems Manager Maintenance Windows
Administrator Access
You can access the backend SAP systems for administration purposes using:
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Remote Desktop Protocol (RDP)
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Secure Shell (SSH)