SSH Unable to Connect to Mac Terminal

Question

Dear Community,

I did the following instruction:

We weren't able to connect to your instance. Common reasons for this include:
1. SSM Agent isn't installed on the instance. You can install the agent on both Windows instances and Linux instances. --> But I’m using Mac. Please advise.

2. The required IAM instance profile isn't attached to the instance. You can attach a profile using AWS Systems Manager Quick Setup. --> Done

3. Session Manager setup is incomplete. For more information, see Session Manager Prerequisites. --> Have verified IAM service role permissions

I’m unable to get EC2 AWS to connect with my Mac Terminal even though in the Instance, I have added, attached, and updated the “Modify IAM Role” from the IAM Instance profile and I did verify IAM service role permissions.

All left is the SSM Agent? Please advise as I find it very hard to work with EC2 AWS (again I’m not Tech Savvy).

Thanks.

Answer

If you mean SSM rather than SSH, and you're running a macos image, according to this page, https://docs.aws.amazon.com/systems-manager/latest/userguide/install-ssm-agent-macos.html, ssm-agent is pre-installed.

If you're running in a public subnet, you'll need a public ip associated with the EC2 instance. If you're in a private subnet, you'll need either a NAT gateway accessible from the subnet, or the appropriate VPC endpoints (if I remember, you'll need the 4 following: ec2, ssm, ec2-messages, ssm-messages).

SSH Unable to Connect to Mac Terminal

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