Using Amazon EC2 Instance Connect for SSH access to EC2 instances
Connecting to EC2 instances via SSH using Amazon EC2 Instance Connect Endpoints...
AWS
Installing EC2 Instance Connect on a RHEL based EC2 instance
Connecting to EC2 instances via SSH using Amazon EC2 Instance Connect Endpoints...
Bastion host & private instances
Accessing private instances via SSH from the bastion host in AWS...
Installing an SSM agent locally on an EC2 instance
This blog contains steps to install an SSM agent locally on an EC2 instance...