Mastering Linux Commands: Overview of SSH to interact with remote servers

In this tutorial, we dive deep into the world of SSH (Secure Shell) to understand how to effectively interact with remote servers. Not only will we learn the basics of SSH, but also gain expertise in tasks such as setting up passwordless logins, running commands remotely via SSH, and setting up parallel SSH for parallel commands execution on multiple Linux systems.

We’ll use video demonstrations to make the concepts more practical and easy-to-understand. Each step is systematically presented to ensure clarity and ease of adaptation - regardless if you’re a newbie or an experienced IT pro.

Key Concepts Explanation

We have broken down the tutorial into several key concepts, each covered in detail with code examples for practical understanding.

Creating Multiple AWS EC2 Instances

Learn how to create multiple instances of AWS EC2 (Amazon Web Service Elastic Compute Cloud), a web service that provides resizable compute capacity in the cloud. The guide provides step-by-step instructions on how to effortlessly set up these instances.

Understanding Passwordless Login and SSH Daemons

This concept takes you through the process of enabling passwordless logins to a remote server. Also, you’ll come to understand SSH Daemons - background processes that handle requests for connections to the server.

Editing SSH Properties Files and Enabling Password Login

We delve into the SSH properties files, understanding their dynamics and how to edit them. Furthermore, you’ll learn to enable password login on your remote server.

Running Commands on Remote Servers

Witness how you can effectively run commands on remote servers using SSH, providing you with powerful control over remote servers.

Setting Up Parallel SSH

We explore the process of setting up parallel SSH to allow for running commands on multiple Linux systems in parallel, enhancing your productivity significantly.

Hands-On Tasks

Now that you understand the key concepts, here are some tasks to perform for practical experience:

  1. Set up AWS EC2 instances and try connecting to them using SSH.
  2. Set up passwordless login to a remote server and test it.
  3. Edit SSH properties files and change some settings.
  4. Run commands on remote servers using SSH.
  5. Set up parallel SSH and run commands on multiple Linux systems at once.


This tutorial provides a comprehensive guide to mastering SSH, a critical skillset for IT professionals. This covers everything from setting up AWS EC2 instances, understanding passwordless login and SSH Daemons, editing SSH properties files, running commands on remote servers, and finally, setting up parallel SSH. Try out the hands-on tasks and please feel free to engage with the community for further learning. Happy practicing and remember, persistence is key in mastering any new skill.

Remember, practice is key to mastering Linux commands. Don’t hesitate to try out these commands and explore their options to deepen your understanding.

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