[ovirt-users] Re: Console - VNC password is 12 characters long, only 8 permitted

Hi Milan, thank you for your answer. So there is no other way/workaround? We must wait the fix in the engine and then upgrade? Maybe a downgrade of libvirt(?).

I was looking up some config file in the host under /etc/libvirt and found the parameters vnc_password in qemu.conf file. I'm not sure that setting a password per host in this config file works, casue it is still passed via xml...

> The default VNC password. Only 8 bytes are significant for # VNC > passwords. This parameter is only used if the per-domain # XML config > does not already provide a password. Francesco Il 14/02/2022 12:41, Milan Zamazal ha scritto: > francesco--- via Users<users(a)ovirt.org> writes: > >> Hi all, >> >> I'm using websockify + noVNC for expose the vm console via browser getting the graphicsconsoles ticket via API. Everything works fine for every other host that I have (more than 200), the console works either via oVirt engine and via browser) but just for a single host (CentOS Stream release 8, oVirt 4.4.9) the console works only via engine but when I try the connection via browser I get the following error (vdsm log of the host): >> >> ERROR FINISH updateDevice error=unsupported configuration: VNC password is 12 characters long, only 8 permitted >> Traceback (most recent call last): >> File "/usr/lib/python3.6/site-packages/vdsm/common/api.py", line 124, in method >> ret = func(*args, **kwargs) >> File "/usr/lib/python3.6/site-packages/vdsm/API.py", line 372, in updateDevice >> return self.vm.updateDevice(params) >> File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py", line 3389, in updateDevice >> return self._updateGraphicsDevice(params) >> File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py", line 3365, in _updateGraphicsDevice >> params['params'] >> File "/usr/lib/python3.6/site-packages/vdsm/virt/vm.py", line 5169, in _setTicketForGraphicDev >> self._dom.updateDeviceFlags(xmlutils.tostring(graphics), 0) >> File "/usr/lib/python3.6/site-packages/vdsm/virt/virdomain.py", line 101, in f >> ret = attr(*args, **kwargs) >> File "/usr/lib/python3.6/site-packages/vdsm/common/libvirtconnection.py", line 131, in wrapper >> ret = f(*args, **kwargs) >> File "/usr/lib/python3.6/site-packages/vdsm/common/function.py", line 94, in wrapper >> return func(inst, *args, **kwargs) >> File "/usr/lib64/python3.6/site-packages/libvirt.py", line 3244, in updateDeviceFlags >> raise libvirtError('virDomainUpdateDeviceFlags() failed') >> libvirt.libvirtError: unsupported configuration: VNC password is >> 12 characters long, only 8 permitted >> >> >> The error is pretty much self explanatory but, I can't manage to >> figure out why only on this server > Hi, > > this happens with libvirt 8.0. > >> and I wonder if I can set the length of the generated vnc password >> somewhere. > I don't think so, it must be fixed in Engine. See > https://github.com/oVirt/ovirt-engine/commit/a1e7e39348550b575f1f01b7 > 01105f9e1066b09f > for more details. > > Regards, > Milan > _______________________________________________ > Users mailing list --users(a)ovirt.org > To unsubscribe send an email tousers-leave(a)ovirt.org Privacy > Statement:https://www.ovirt.org/privacy-policy.html > oVirt Code of > Conduct:https://www.ovirt.org/community/about/community-guidelines/ > List > Archives:https://lists.ovirt.org/archives/list/users@ovirt.org/messag > e/XJMULDXFHBYK3GNICAJRASQCSLBIFJV7/