Jack Wallen

Which version of Java should you use in Linux? Learn how to easily switch between different versions with a tutorial from Jack Wallen.

In this How to Make Tech Work tutorial, Jack Wallen shows how to create a Docker volume that can be used for any number of containers.

In Jack Wallen’s tutorial for developers, he show how easy it is to set temporary environment variables in Linux.

This is a step-by-step guide on how to compare the contents of local and remote files with the help of SSH. Watch the companion video tutorial by Jack Wallen.

SSH keys provide a secure and convenient way to authenticate remote servers. In this step-by-step tutorial, Jack Wallen explains how to easily create and copy SSH keys.

In this step-by-step tutorial, learn how to create and use a Docker secret to help keep your data secure.

Use our step-by-step guide to learn how to quickly add code to Google Docs using the Code Blocks add-on as well as the built-in Google Workspace option.

In this How to Make Tech Work tutorial, Jack Wallen demonstrates how to install Git on macOS.

In this How to Make Tech Work tutorial, Jack Wallen shows how to add another layer of security to your Linux machines with just two files.

In this step-by-step guide from Jack Wallen, learn how to access and modify the Linux hosts file to control the mapping of hostnames to IP addresses.

Jack Wallen shows you how to make SSH connections even easier from your macOS machine.

In this TechRepublic How to Make Tech Work tutorial, Jack Wallen shows you how to add the Docker Scout feature to the Docker CLI.