[CentOS] VNC

[Larry Martell]

On Sat, Oct 19, 2013 at 11:15 PM, Earl A Ramirez <earlaramirez at gmail.com>wrote:

> Sorry for top posting, this is the only option that the phone allow.
>
> If the host is running a X server you can use -X option with ssh.
>
> $ ssh -X user at host
> And start virt-manager to manage the VMs.
>


I am running putty from Windows. I do have X11 forwarding enabled. But I
still get  'could not open display' I though perhaps I needed to install
Xming, but I don't have admin rights on the Windows box, so I couldn't do
that.


On Oct 20, 2013 11:40 AM, "Larry Martell" <larry.martell at gmail.com> wrote:
>
> > On Saturday, October 19, 2013, Earl Ramirez wrote:
> >
> > > On Sat, 2013-10-19 at 21:18 -0600, Larry Martell wrote:
> > > > On Saturday, October 19, 2013, Earl Ramirez wrote:
> > > >
> > > > > On Sat, 2013-10-19 at 17:23 -0600, Larry Martell wrote:
> > > > > > On Sat, Oct 19, 2013 at 4:56 PM, Larry Martell <
> > > larry.martell at gmail.com
> > > > > >wrote:
> > > > > >
> > > > > > > I had posted last week about trying to get VNC working. I was
> > never
> > > > > > > successful nor were multiple admins. But we realized that all
> the
> > > > > hosts we
> > > > > > > tried on were VMs. We followed the same procedure (
> > > > > > > http://wiki.centos.org/HowTos/VNC-Server) on a machine with
> > > physical
> > > > > HW
> > > > > > > and it worked with no problem. But on the VM I can connect,
> but I
> > > > > don't get
> > > > > > > any window displayed. Here is what is in the log:
> > > > > > >
> > > > > > > Sat Oct 19 18:39:55 2013
> > > > > > >  vncext:      VNC extension running!
> > > > > > >  vncext:      Listening for VNC connections on all
> interface(s),
> > > port
> > > > > 5902
> > > > > > >  vncext:      created VNC server for screen 0
> > > > > > > GNOME_KEYRING_SOCKET=/tmp/keyring-Y6Tg3c/socket
> > > > > > > SSH_AUTH_SOCK=/tmp/keyring-Y6Tg3c/socket.ssh
> > > > > > > GNOME_KEYRING_PID=19728
> > > > > > > Failed to play sound: File or data not found
> > > > > > >
> > > > > > > ** (nm-applet:19775): WARNING **: <WARN>  request_name(): Could
> > not
> > > > > > > acquire the NetworkManagerUserSettings service.
> > > > > > >   Error: (9) Connection ":1.552" is not allowed to own the
> > service
> > > > > > > "org.freedesktop.NetworkManagerUserSettings" due to security
> > > policies
> > > > > in
> > > > > > > the configuration file
> > > > > > >
> > > > > >
> > > > > > Googling that error I found this:
> > > > > > https://bbs.archlinux.org/viewtopic.php?id=63576 and I followed
> > the
> > > > > advice
> > > > > > there. Now I don't get that error, but I still get no display.
> Now
> > > all I
> > > > > > get in the log is this:
> > > > > >
> > > > > >
> > > > > > 19/10/2013 07:14:27 PM [IPv6] Got connection from client
> > > > > > ::ffff:10.250.151.75
> > > > > > 19/10/2013 07:14:27 PM   other clients:
> > > > > > 19/10/2013 07:14:27 PM Client Protocol Version 3.7
> > > > > > 19/10/2013 07:14:27 PM Advertising security type 2
> > > > > > 19/10/2013 07:14:28 PM Client returned security type 2
> > > > > >
> > > > > > My xstartup file is identical on the VM and the physical host.
> > > > > >
> > > > > > Does anyone out there have VNC working on a VM?
> > > > > >
> > > > > >
> > > > > > > 19/10/2013 06:39:59 PM Autoprobing TCP port in (all) network
> > > interface
> > > > > > > 19/10/2013 06:39:59 PM Listening IPv{4,6}://*:5900
> > > > > > > 19/10/2013 06:39:59 PM Autoprobing selected port 5900
> > > > > > > 19/10/2013 06:39:59 PM Advertising authentication type: 'VNC
> > > > > > > Authentication' (2)
> > > > > > > 19/10/2013 06:39:59 PM Advertising security type: 'VNC
> > > Authentication'
> > > > > (2)
> > > > > > >
> > > > > > > (polkit-gnome-authentication-agent-1:19796):
> GLib-GObject-WARNING
> > > **:
> > > > > > > cannot regster existing type `_PolkitError'
> > > > > > >
> > > > > > > (polkit-gnome-authentication-agent-1:19796): GLib-CRITICAL **:
> > > > > > > g_once_init_leave: assertion `initialization_value != 0' failed
> > > > > > > Initializing nautilus-gdu extension
> > > > > > > Initializing nautilus-open-terminal extension
> > > > > > >
> > > > > > > ** (gnome-panel:19761): CRITICAL **:
> > > > > panel_applet_frame_change_background:
> > > > > > > assertion `PANEL_IS_WIDGET (GTK_WIDGET (frame)->parent)' failed
> > > > > > >
> > > > > > > (polkit-gnome-authentication-agent-1:19796):
> > polkit-gnome-1-WARNING
> > > > > **: No
> > > > > > > icon for themed icon with name
> 'preferences-system-network-proxy'
> > > > > > > Window manager warning: Buggy client sent a _NET_ACTIVE_WINDOW
> > > message
> > > > > > > with a timestamp of 0 for 0x2c00003 (Authentica)
> > > > > From the KVM Guest, under "Show Virtual Hardware Detail", I change
> > the
> > > type from VNC to Spice from the Display option, which was "Display VNC"
> > > prior to the change.
> >
> >
> > My only access to the host is via ssh so I don't think I can do that.
> >
> >
> > >
> > > You don't have to make the change if you don't want to as I was able to
> > > connect to the KVM Guest after it was started with the following
> command
> > > and the Display was configured for VNC:
> > > $ sudo virsh start KVM_Guest
> > >
> > > Once there is no sessions for the KVM that you are connecting to, you
> > > will be fine.
> > >
> >
> > I'll try that tomorrow.
>