What A Hub Is
A hub is a collection of related labs, challenges, theory pages, and sometimes projects. It gives structure to a topic such as Linux, Kubernetes, networking, or AI fundamentals.
Instead of learning from disconnected exercises, a hub gives you a path that builds from basic ideas into practical scenarios.
Live And Offline Hubs
Live hubs are available to learners. Offline hubs are not shown as active learning content for normal users.
Admins and creators may preview offline content for review, but learners should normally only see content that belongs to a live hub they can access.
Hub Access
Some hubs are open. Some are assigned by an organization or creator. Some may require membership.
If a lab or challenge says hub access is required, it means the content is attached to a hub that your account does not currently have access to.