MANAGE SSH TUNNEL MAC HOW TO
Note: For instructions on how to access your EC2 instances with a terminal or a single port forwarding, see Setting up Session Manager. Ease of use: Access resources in your private VPC directly from your local machine.This removes the need to open any inbound rule publicly. The local resource must allow inbound traffic from only the instance that acts as the bastion host. This allows you to use Session Manager without any inbound connections.
Increased Security: This configuration uses one Amazon Elastic Compute Cloud (Amazon EC2) instance (the bastion host), and connects outbound port 443 to Systems Manager infrastructure.
The following points are benefits of this configuration: A managed instance that you create acts as a bastion host, or gateway, to your AWS resources. Session Manager tunnels real SSH connections, and allows you to tunnel to another resource within your Amazon VPC directly from your local machine. Session Manager uses the Systems Manager infrastructure to create a session with an instance similar to SSH. For more information, see Starting a session (port forwarding to a remote host). Port forwarding is an alternative to the following steps. This feature is supported on SSM Agent versions. Session Manager is a capability of AWS Systems Manager that lets you use port forwarding for remote hosts. To create an SSH tunnel, use Session Manager. SSH tunnels allow you to forward connections made to a local port to a remote machine through a secure channel. SSH tunneling, or SSH port forwarding, is a way to transport data over an encrypted SSH connection.
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