---
title: "Licensing and admin"
description: "Plans, trials and buying; applying a license key; managing CAT on many machines; Linux; troubleshooting"
url: "https://docs.justcat.it/how-to-guides/licensing-and-admin/"
---
# Licensing and admin


Plans, trials and buying; applying a license key; managing CAT on many machines; running it on Linux; finding out what went wrong.