K3s Back Up a k3s Node and Restore It 1:1 on New Hardware How I back up my single-node k3s cluster on Ubuntu and restore it 1:1 onto new hardware — same IP, SSH identity, volumes, and Kubernetes secrets intact.
Linux Set Up a Secure Linode Ubuntu VM for $5 a Month Set up a cheap $5/month Linode Ubuntu VM and harden it: create a non-root sudo user, add SSH key login, disable password auth, and change the SSH port.