[virt-tools-list] virt-manager over ssh

[Vincenzo Romano]

Hi all.

I am struggling to make virt-manager work over an SSH link.
The remote host is Ubuntu Server 18.04, running libvirt daemon
v4.0.0-1ubuntu8.5.
I have setup and tested an SSH key authentication between local
machine and the remote host.
The remote user I am using belongs also to 'kvm' and 'libvirt' groups.
On the local machine (ArchLinux up-to-date) I have virt-manager v2.0.0
that works flawlessly while using the local libvirt daemon.
Whenever I try to open the connection I get this error (copy+pasted
from the error dialog):

==== BEGIN ====
Unable to connect to libvirt qemu+ssh://vmanager@noa.vm1/system.

End of file while reading data: nc: unix connect failed: Permission
denied: Errore di input/output

Verify that the 'libvirtd' daemon is running on the remote host.

Libvirt URI is: qemu+ssh://vmanager@noa.vm1/system

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/connection.py", line 1012,
in _do_open
    self._backend.open(connectauth.creds_dialog, self)
  File "/usr/share/virt-manager/virtinst/connection.py", line 138, in open
    open_flags)
  File "/usr/lib/python3.7/site-packages/libvirt.py", line 104, in openAuth
    if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirt.libvirtError: End of file while reading data: nc: unix connect
failed: Permission denied: Errore di input/output
==== BEGIN ====

Of course virt-manager is working and I am missing something important.
But I have no clue on what I am missing.

Any hint?

Thanks in advance.

-- 
Vincenzo Romano - NotOrAnd.IT
Information Technologies
--
NON QVIETIS MARIBVS NAVTA PERITVS