Ravi Sir's Cards › AWS
Systems Manager in one line
This revision card explains Systems Manager in one line. It starts from the need that opening SSH 22 to every server is risky and hard to audit. It describes systems Manager manages EC2/hybrid nodes — Session Manager, Run Command, Patch, Parameter Store. The how-to section notes install/agent healthy , then IAM instance profile , then use Session Manager; patch with baselines. An example on the card is ops shells into prod via Session Manager with CloudTrail; no bastion port 22.
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What this card says
Why do we need it?
Opening SSH 22 to every server is risky and hard to audit.
What is it?
Systems Manager manages EC2/hybrid nodes: Session Manager, Run Command, Patch, Parameter Store.
SSM
How to do it
Install/agent healthy → IAM instance profile → use Session Manager; patch with baselines.
Example
Ops shells into prod via Session Manager with CloudTrail; no bastion port 22.