 Resources from Mark Shust in 2021

“Setting up remote server authentication” will never be on your job description. It’s not one of those desirable responsibilities that convinces talented people to move across the country and pursue the job of their dreams.

But at that dream job, you might be asked to set up an SSH key. You’d better be ready.

In this course, we will learn the fundamentals of creating SSH keys and configuring them for connectivity to a remote server. We’ll figure out how to:

- tunnel SSH connections for easier local debugging
- set up configuration files to simplify the aspect of connecting to remote servers
- use security features like blocking incoming connections

Being prepared is key. Learn the skills now!

Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. Bash is a command processor that typically runs in a text window, where the user types commands that cause actions. Bash can also read and execute commands from a file, called a shell script.

bash

SSH for Remote Server Authentication

In this course we will take a simple Node.js app that connects to a MongoDB database and uses an Express web server, and learn how to setup a full software development deployment process as well as how to properly “Dockerize” the app. 

We’ll step through setting up proper version control techniques, managing configuring within the environment, setting up proper build/deploy/run processes, and all with abiding by Docker best practices. We’ll also make sure our deployment is setup for scale, and have consistent development practices in place for reliable app deployments.

Docker containers wrap a piece of software in a complete filesystem that contains everything needed to run: code, runtime, system tools, system libraries – anything that can be installed on a server. This guarantees that the software will always run the same, regardless of its environment.

docker

Build a Twelve-Factor Node.js App with Docker

Bite-size video tutorials for badass web developers.

egghead

Docker Fundamentals

Learn how to use SSH config files to greatly simplify SSH connections to remote hosts, use hostname aliases, and set advanced directives such as Port and IdentityFile settings per host.

Simplify connections with SSH config files

Learn how to generate an SSH private and public key set. We'll also cover what permissions are set on the .ssh folder, as well as what each of the id_rsa and id_rsa.pub keys are and what they do.

Create a New SSH Public and Private Key Set

Learn how to use the ssh-copy-id command to securely add your SSH key to a remote host. Find out what happens after copying a public key to the remote server, as well as manually adding keys to the ~/.ssh/authorized_keys file.

Copy an SSH key to a remote server using ssh-copy-id

Learn the basics of how to SSH into a remote server. Find out how to specify a specific port with the -p flag, or a different SSH to use for a connection with the -i flag. You can also run one-off bash commands without dropping into a bash shell prompt.

SSH into a remote server

Learn how to copy files to and from remote server hosts with the scp command. You will also learn how to specify a different port and identity file when secure copying files.

Use scp to securely copy files remotely over SSH

Learn how to configure SSH tunnels with local and remote port forwarding. This allows you to bypass intranet firewalls and setup persistent connections between your local host machine and a remote server.

Configure local and remote port forwarding with an SSH tunnel

Learn a little known feature of SSH known as escape sequences. These hidden sequences allow you to unstick a frozen terminal window, keep a remote SSH session open in the background, and more.

Use SSH escape sequences and codes

Learn how to retrieve the SSH fingerprint of a remote host, and also how to verify you are connecting to your trusted server and not an impersonator. The known_hosts file keeps track of SSH fingerprints and remote hosts that you previously connected to.

Check and verify SSH fingerprints

Learn how to modify the sshd_config configuration file to lock down incoming SSH connections. You can filter and prevent incoming SSH connections by username, IP address, as well as other methods.

Modify server configuration to lock down incoming SSH connections

Learn how to audit SSH logs and trails to ensure your remote host has not been compromised. The lastlog command will help you with your audit trail to help scrutinize possibly undesired connection attempts.

Monitoring and auditing SSH connection attempts

React is one of the web’s most popular frameworks for building JavaScript applications. 

If you know what you’re doing, React can drastically simplify how you build, use, and maintain code.

Whether you’re a React newbie or you’re ready for advanced techniques, you can level-up with egghead. Explore our in-depth courses, lessons, and community resources to build more powerful applications and crack open your career.

react

Easy Peasy is a JavaScript library that can be used to very simply implement Redux into a React application. In this lesson, we will learn how to setup Easy Peasy by creating a model, injecting that model into a StoreProvider React component, and calling actions to update global state from our functional component.

Implement a Redux Store with Easy Peasy & React Hooks

How to use the Kubernetes Dashboard GitHub repo to deploy and access the Kubernetes Dashboard on a Mac. We'll learn how to start the services needed for the dashboard, how to create a new admin user, and then retrieve the token for that admin user to login to the dashboard.

Deploy and Access the Kubernetes Dashboard

JavaScript® (often shortened to JS) is a lightweight, interpreted, object-oriented language with first-class functions, most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic, and supports object-oriented, imperative, and functional programming styles.

javascript

In this lesson, Mark will summarize why it is good to use RequireJS for managing JavaScript dependencies. We'll go over an example of a plain vanilla JavaScript implementation of jQuery, and refactor the code to use RequireJS.

WTF is RequireJS?

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications.

express

High availability apps require that no distinction be made between local and remote services. Attached resources should be accessed by environment variables, and in doing so allow you to swap out one attached resource for another. 

In this lesson we will setup a reverse proxy that directs image path requests and routes them through a defined server URL. By doing so, we decouple server requests for images which allows for easy switching from locally-served image assets to a CDN by simply updating an environment variable.

Proxy Requests for Local and Remote Service Parity

Docker containers are stateless by default. In order to persist filesystem changes, you must use docker volumes. In this lesson, we will go over how to copy files over to Docker containers, how to create volumes and copy data to them, and also how to mount remote folders for persisting updates.

Create Docker Volumes for Persistent Storage

In this lesson we will find out how to serve static assets (images, css, stylesheets, etc.) with Express. We will go over writing initial boilerplate for a simple Express app, and using Express's built-in middleware to serve these assets through a web server on Node.js.

Serve Static Files with Express

In this lesson we will cover proper version tagging when building Docker images, creating a docker-compose.yml file for proper release management, and running the tagged release by using Docker Compose to launch app resources as Docker containers.

Build, Release and Run Containers with Docker Compose

Learn about the concepts of managing data within Docker volumes, including all of the commands to create and manage volumes. We'll demonstrate how to mount a Docker volume to one or many containers by creating and mounting a volume to an Nginx proxy, and then verify the output with curl. You'll also see how changes to files within volumes of one container propagate to other containers with the same volume mounted, and learn various commands to inspect Docker volumes.

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Mark Shust