multi-node private blockchain for testing

Hi Folks,

I need to setup a private blockchain with 2/3 nodes, so that I can test smart contracts as per tutorials. I am planning to use 2/3 Ubuntu virtual machines for this setup and wanted to have low difficulty for miners. Below are my question

1. Is it OK/possible to setup this on virtual machines?
2. If yes, can someone provide me doc/steps to follow.
3. if not, what minimum bare-metal and GPU machine is needed.

Thanks in advance.


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