Even though it might be a bit soon for use in production, but all I find about setting up a private blockchain seems to be for testing.
But the fact we have a genesis.json should mean that anyone has the freedom to make their own ethereum blockchain.
The only thing that is not clear, is how the chain will connect to others. As I understand it will look in the local network first, but how can I limit the first node from connection to just any node?
I understand that only nodes with the same genesis block will join in, but I would want at least some initial control over how it propagates.
Best Answer
It's the networkid, it will indentify your network and only nodes with the same id will join the network.