How does Systems Manager let you run commands on EC2 instances without using SSH?

Question

Mahesh B · Accepted Answer

AWS Systems Manager's Run Command feature allows you to execute commands on EC2 instances without SSH by using the Systems Manager Agent installed on the instances. Commands are sent directly from the AWS Management Console or CLI, eliminating the need for open SSH ports. The output is logged and accessible through Systems Manager, enhancing security and management efficiency. Sample AWS SSM CLI command is given below: aws ssm send-command --document-name "AWS-RunShellScript" --targets "Key=tag:Environment,Values=Production" --parameters 'commands=["echo Hello World"]' This command will execute on all instances that have the tag Environment set to Production. Instances with different tag values for the same key will not be included in the command execution.

How does Systems Manager let you run commands on EC2 instances without using SSH?

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