/categories/linux/Recent content in Linux on $>sh 'hello-friend.sh'Hugoen-us<a href="https://creativecommons.org/licenses/by-sa/4.0/" target="_blank" rel="noopener">CC BY-SA 4.0</a>Mon, 01 Jan 0001 00:00:00 +0000/blog/2026/08/12_bastion/Wed, 12 Aug 2026 00:00:00 +0000/blog/2026/08/12_bastion/<blockquote> <p>SSH(1)</p> <p>ssh (SSH client) is a program for logging into a remote machine and for executing commands on a remote machine.<br> It is intended to provide secure encrypted communications between two untrusted hosts over an insecure network.</p> </blockquote> <p>Hello there!</p> <p>You already know what a bastion host is. I built one on AWS and put the <a href="https://docs.aws.amazon.com/cloudformation/">CloudFormation</a> template on GitHub, <a href="https://github.com/dsapab/aws-cloudformation-samples/tree/master/ec2-spot-bastion#how-it-works">ec2-spot-bastion</a>. CloudFormation is AWS&rsquo;s infrastructure-as-code service, you write a template describing the resources you want and it builds them for you. This is just a short review, the <a href="https://github.com/dsapab/aws-cloudformation-samples/tree/master/ec2-spot-bastion#how-it-works">README</a> has the full walkthrough. You will need some basic AWS knowledge to get it running.</p>