It's pretty clear how to create a custom chain and having remote client connect to the node with this :
geth attach # connect over IPC on default endpoint geth attach ipc:/some/path # connect over IPC on custom endpoint geth attach http://host:8545 # connect over HTTP geth attach ws://host:8546 # connect over websocket
But that's just a client connecting to the node.And not exactly another client running it's own node of my chain.
I'm wondering if it's possible to have a custom list of client(which are nodes) that can connect / use/ run a node of my privatenet but making it impossible for people outside that list from doing it.
Should that be done externally ? by restricting ip ? or can it be done any otherway? more internally ?
Any info / link for doing so is very welcome.
TLDR: I want a private chain with node 1 connected to node 2 connected to node 3 but managing who can connect to whom so that my data stays private but still need to be verified by multiple nodes to be included , much like what vitalik describe as a Consortium blockchain , here