Mastodon is a decentralized social media platform that has been rising in popularity recently. In this quick First Look course, Senior Staff Instructor Scott Simpson describes how Mastodon works an...

Metadata, or data about data, is an important aspect of working with information. From file modification dates to the lens used to take a photo, these bits of information attached to or associated ...

These concise (less than 3:30) SQL challenges let you stretch your brain and test your talents. Instructor Scott Simpson frames the challenges in real-world scenarios you might encounter. Tasks ran...

Bash is a popular command line interpreter and the default option on Linux. In this course, Scott Simpson guides you through using Bash. Scott covers the history and significance of Bash, as well a...

Network and system administrators need somewhere to practice their skills, and a home lab is a great choice. In this course, Scott Simpson explains the advantages of a home lab and shows you how to...

Linux is a popular and free operating system for desktop and laptop computers. It’s an alternative to macOS or Windows, which can run right alongside them in a virtual machine. In this course, Link...

Windows Subsystem for Linux provides a Linux environment for developers inside of Windows. Rather than starting a virtual machine or relying on a remote Linux machine for development, WSL provides ...

Kali Linux provides many tools for security analysis and penetration testing. Using Windows Subsystem for Linux (WSL), you can run Kali Linux within Windows, instead of dedicating a computer to a K...

Have you ever wondered how it’s possible to share files safely from one computer to another, let alone across a public network, where there’s so much more at stake? If you’re looking to develop you...

If you want to work in IT or software development, you need to know your way around SSH. More than just a tool, SSH, or Secure Shell, allows you to make a secure connection to a command-line shell ...