How to Access EC2 Instances Without SSH (Using AWS Session Manager)
AWS Systems Manager Session Manager skips all of that. You connect using IAM permissions alone, over HTTPS (port 443) — no open SSH port, no keys, no bastion host.
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AWS Systems Manager Session Manager skips all of that. You connect using IAM permissions alone, over HTTPS (port 443) — no open SSH port, no keys, no bastion host.
If you're trying to connect to an Amazon EC2 instance using SSH and see the following error: @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ @ WARNING: UNPROTECTED PRIVATE KEY FILE! @ @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ Permissions 0644 for 'kejalnovasrvkey.pem' are too open.
In this blog, I build a Jenkins server on AWS from scratch, step by step. We set up a full production-style architecture: Jenkins running in Docker on EC2, behind an Application Load Balancer with free HTTPS from AWS Certificate Manager, and no NAT Gateway which alone saves cost.