On Mon, Jan 29, 2018 at 11:40:42 +0200, Ori Liel wrote: The issue is that oVirt tries to protect the libvirt connection from tampering behind it's back by enabling connection authentication. You can easily google the username and password so it's really security-by-obscurity so that users don't mess with VM's behind libvirt's back. The issue you are seeing is that the libvirt-guests service/script can't handle authentication and in general is not a good idea to use it together with oVirt. I'd suggest you disable the 'libvirt-guests' service when you are using oVirt.