prevent take over of a SPICE-Remotedesktop


Renowned Member
Sep 3, 2013

is it possible to prevent the take over of a existing SPICE remote desktop session?

Actually, every user with permissions to a dedicated VM can over take any SPICE Window that another user with similar permissions had used. And therefore spy on any data and use the login on those VM by himself without any restrictions.

Is it possible to block that behavior in any way, maybe
- that a running SPICE session can not take over from another user?
- that a SPICE session can only been take over from the same client that started the remote session before?
- or that a running SPICE session canot take over at all, that it is needet to log off first before another user can start another spice session on a particular VM?
for such a thing you have to use a remote desktop technology which sits inside the guest

the vnc/spice console of qemu is like looking at the monitor/using the plugged in mouse of a hardwarebox.. as soon as someone can
stand there and look at the monitor, everything somewhere does there is visible
Well, not really. I need the Host-Remotedesktop because of the workload i have running & it is possible somehow, as Virtualbox shows.

In Virtualbox you can limit the amount of parallel user via settings to one user, preventing the overtake of a Remotedesktopsession.

Not really a perfect solution, but working.

Unfortunatly using VirtualBox as enterprise Hypervisor is not really smooth. A lot of scripting and manual work instead of a nice WebGUI :-(

But it seems that VirtualBox is the only free usable Hypervisor that has this functionality for non-Admin users.
i#m now going forward with a combination of Hyper-V and guacamole.
Guacamole can connect to Host-RDP of Hyper-V and has some of the features that MS removed with Server 2012R2 (permission per users) which gave a similar experience then with Virtualbox.

Unfortunatly Proxmox seems not to be usable for that kind of workload. The Remotedesktop-fatures of Proxmox are nice for admin purpose but lack to many features for a user workload.

I would like to use Proxmox together with Guacamole, but because of the authentication process of Proxmox-Remotedesktop this looks to much like a long crafting job :-(


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