1. Create a virtual machine
2. Change the network to bridge mode
3. Install Ubuntu Server OS
4. Setup the hostname to something like “node-01”
5. Boot up the new virtual machine
6. Remove some network rules sudo rm -rf /etc/udev/rules.d/70-persistent-net.rules
7. Clone the virtual machine
8. Initialize with a new MAC address
9. Boot up the cloned virtual machine
10. Edit /etc/hostname: change “node-01” to “node-02”
11. Edit /etc/hosts: change “node-01” to “node-02”
12. Reboot the cloned virtual machine
13. Repeat step 7 to 13 until there are enough nodes

Note: the ip address of each node should start with “192.168.” unless you don’t have a router.