However, the SSM agent requires an IAM role attached to the EC2 instance granting access to the SSM API. Learn how to Manually install SSM Agent on EC2 instances for Linux from the AWS documentation. That’s because the agent is bundled into Amazon Linux, Amazon Linux 2, SUSE Linux Enterprise Server (12 and 15), and Ubuntu Server (16.04, 18.04, and 20.04) by default. SSM Session Manager IAM role required by SSM agentĪs mentioned before, the SSM agent is running on most EC2 instances already. Configure your SSH client to use EC2 Instance Connect and Systems Manager to establish a tunnel for SSH connections.Īre you confused about the different options to connect by using EC2 Instance Connect and Systems Manager? Check out Petri’s comparision: EC2 Instance Connect vs. ![]() Install the AWS CLI and the session manager plugin on your local machine.Attach an IAM role - granting the SSM agent access to the SSM API - to each EC2 instance to.Double check that the SSM agent running on your machines can connect with the SSM API through an internet gateway, NAT gateway, or VPC endpoint.Make sure the SSM agent is running on your EC2 instances - which is already the case for Amazon Linux and Amazon Linux 2.How do you make this approach happen on your local machine and EC2 instances? Authentication and authorization for the user and the SSM agent is IAM’s job.The user establishes an SSH connection through a Websocket between Terminal and SSM. ![]() ![]()
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