AWS Systems Manager (AWS SSM) Introduction

AWS Systems Manager is a Hybrid Service that helps us to manage our EC2 and on-prem systems at scale. We can also get operational insights about the state of our infrastructure while using this service. It is most importantly used for the following features:

- <mark> Patching & Automation</mark> : For enhanced compliance
- <mark> Run commands across entire fleet of servers</mark>
- <mark> Store parameter configuration</mark> with <mark>
  	SSM Parameter Store
  </mark>
- It works with linux, windows, macOS, RaspberryPi OS (Raspian)

• We need to install SSM agent onto the system we control.
• It is already installed by default on Amazon Linux AMI & Some Ubunti AMI
• If instance cannot be controlled with SSM, there is probably an issue with SSM Agent.
• Thanks to SSM Agent wecan run commands, patch & configure our servers.

• Allows you to start a secure shell on your EC2 and op-prem servers.
• No SSH Access, Bastion Hosts or SSH Keys REQUIRED!
• No Port 22 Access Needd (better security)
• Supports Linux, MacOS, Windows
• Sends Session log data to S3 or Cloudwatch Logs