Last updated November 1, 2026

User Agreement

This agreement is between you and MOSHELL Linux. It covers moshellinux.com: the browser sandbox, the lessons, NETRUN, the trivia challenge, the Lab Workbook, and MOSHELL Pro.

The lab

Lessons 01–06, the command cheatsheet, the VM setup notes, the trivia challenge, and NETRUN’s attack track are free to use in the browser. MOSHELL Pro is $37, paid once. It unlocks lessons 07–14 in the browser and includes the workbook and the full NETRUN walkthrough. The Lab Workbook PDF is $17 on its own. The NETRUN walkthrough is also $5 on its own. The price on the page at the time you pay is the price you agree to.

Your license

A purchase is a personal license for you. The Gumroad receipt includes a license key. Pasting that key on the lab unlocks Pro in that browser. Do not publish the key, the PDFs, or the premium lesson files for other people to download. You may share the link to the free lab.

How to practice

NETRUN is a simulated network on this site. Use the lessons on the lab, on machines you own, or on systems you are allowed to test. Do not use them to break into someone else’s computer or network.

What the course is

The lessons are hands-on practice. They are not a job offer, a certification, or a promise of a particular result. You receive the materials described on the sales page for the price you pay.

Payments

Gumroad processes the checkout. Gumroad’s buyer terms cover the payment. The receipt email is how the files and the license key are delivered.

Changes

Lessons and this agreement can be updated. The date at the top is the version you are reading. Using the lab after an update means you accept the agreement as it reads then.

Contact

MOSHELL Linux is run by Fab (KingMo87). Questions about this agreement can go to github.com/KingMo87.