We have seen the development of Private and Public blockchain (Permission vs Permission less). BitCoin the best example of a Public blockchain where any one can read the transactions, create transaction, become a node or miner. How can we best describe Ethereum a Public or Private BC or it can be either any running the EVN in a closed environment. Why I am asking this, as I am creating a dapp, which has all the supply chain parties as nodes in the Private, newly created chain (Monax BC). So, it is possible to have out Private, Permission based BC in Ethereum also ?
And also how is the Microsoft Azure service BaaS which runs on top of Ethereum provides a private BC ?