Set up two VMs on VirtualBox 5.1 which is installed on CentOS 7?

Question

linux

There is a remote server with CENTOS 7 raised on it. Two white ip
It turned out to configure and raise the CentOS network and install two WinServer08 and CentOS 6.9 machines on VIrtualBox.
I can not get access from outside to each machine separately.
WinServer08 needs RDP
CentOS 6.9. - it is planned to install cPanel

Answer 1

You need to do port forwarding to your virtual machines.
Something like this
-t nat -A PREROUTING --dst EXT_IP -p tcp --dport 3389 -j DNAT --to-destination MACHINE_IP_IN_LAN_NETWORK:3389
But I would not expose the rdp port outside.
Alternatively, you can make a bridge and give the provider's ip to the machines, but then you need 3 ip addresses.
Well, another note, it's better not to consider the work of VB, since it is generally slow.
Look towards KVM, as a variant of a ready-made host solution with the proxmox.com admin panel.
In particular, for linux, you can use the LXD or Docker container and save resources.
Win no options in KVM.