Q: What if a node has multiple labels?
A: In this case, the access will be granted only if all of the labels defined in the role are present. This effectively means Teleport uses an "AND" operator when evaluating node-level access using labels.
Q: Can I use node-level RBAC with OpenSSH servers?
A: No. OpenSSH servers running
sshd can't label themselves. This is a factor in deciding to run the Teleport Node service instead.