AWS offers secure EC2 management without opening SSH port

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AWS Systems Manager Session Manager provides an alternative to SSH for managing Linux EC2 instances. It allows administrators to establish interactive sessions without exposing the inbound SSH port 22. The method relies on an agent installed on the instance and administrator IAM permissions. All session requests are handled through AWS services, removing the need for a direct network path to the instance. This approach enhances security by eliminating the requirement for an open inbound port on the instance's security group.

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