1. Set up your machine
In addition to any usual CLI parameters that you run HENG TONG with, you'll need to add an extra two:
--validator
This tells your node to try to validate when it sees itself as a listed authority on the network;--key <SEED>
This provides your node with a secret key that lets it know whether it's a listed authority on the network, and, if it is, lets it sign statements to authorise the creation of new blocks.