Using VirtualBox under linux build a clustered environment

Reference article:
https://www.nakivo.com/blog/virtualbox-network-setting-guide/
https://help.ubuntu.com/lts/serverguide/openssh-server.html
https://technologyrss.com/ configure-static-ip-address- on-ubuntu-19-04 /

Set the network bridge mode

The reason for setting the bridge and the physical host in a LAN

because of my physical host is linux, virtual LAN adapter selection Paravirtualized Network Adapter (virtio-net) , if it is windows should be able to pick

Set a static IP

sudo vim /etc/netplan/50-cloud-init.yaml

network:
    ethernets:
        enp0s3:
            dhcp4: false
            addresses: [192.168.1.101/24]
            gateway4: 192.168.1.1
            nameservers:
                    addresses: [8.8.8.8,8.8.4.4]

    version: 2

sudo netplan apply