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1st chunk of `content/en/includes/task-tutorial-prereqs-node-upgrade.md`
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You need to have shell access to all the nodes, and the kubectl command-line tool must
be configured to communicate with your cluster. It is recommended to run this tutorial 
on a cluster with at least two nodes that are not acting as control plane hosts.
Title: Prerequisites for the Tutorial
Summary
This tutorial requires shell access to all nodes in the cluster. The kubectl command-line tool must also be configured to communicate with the cluster. It is recommended to use a cluster with at least two nodes that are not control plane hosts.