File transfer between multiple Workstations, how?

[AnonymityDoesMatter]

Hi. What is the most secure and convenient way to transfer files between two or more Workstation VMs? Whonix wiki doesn’t have any information about this. I am not interested in connections between Gateway and Workstation, just between multiple Workstations. Is setting up an SSH server on Workstations machine and then use Secure Copy will be a good choice? Any risks that an attacker can reach my Workstation machine through SSH?

[Erich_Wettel]

You can setup shared folders between two guests. Both Virtualbox & KVM have documentation on this.

[AnonymityDoesMatter]

@Erich_Wettel

You can setup shared folders between two guests. Both Virtualbox & KVM have documentation on this.

But that is not secure approach I guess because shared folders rely on non-free VirtualBox guest additions. More secure is to set up an SSH server inside one of Workstations inside internal virtual interface and then secure copy files to them. I think so. So could you tell me what is more secure?

[Patrick]

@AnonymityDoesMatter

non-free VirtualBox guest additions

Not non-free. See:
VirtualBox Guest Additions ISO Freedom vs Non-Freedom

[HulaHoop]

@AnonymityDoesMatter

But that is not secure approach I guess because shared folders rely on non-free VirtualBox guest additions. More secure is to set up an SSH server inside one of Workstations inside internal virtual interface and then secure copy files to them. I think so. So could you tell me what is more secure?

Use KVM and apply the same concept. No closed plugins of any type are ever needed.