VIRT-VIEWER(1)



VIRT-VIEWER(1)              Virtualization Support              VIRT-VIEWER(1)

NAME
       virt-viewer - display the graphical console for a virtual machine

SYNOPSIS
       virt-viewer [OPTIONS] [ID|UUID|DOMAIN-NAME]

DESCRIPTION
       virt-viewer is a minimal tool for displaying the graphical console of a
       virtual machine. The console is accessed using the VNC or SPICE
       protocol. The guest can be referred to based on its name, ID, or UUID.
       If the guest is not already running, then the viewer can be told to
       wait until it starts before attempting to connect to the console.  The
       viewer can connect to remote hosts to lookup the console information
       and then also connect to the remote console using the same network
       transport.

OPTIONS
       The following options are accepted when running "virt-viewer":

       -h, --help
           Display command line help summary

       -V, --version
           Display program version number

       -v, --verbose
           Display information about the connection

       -c URI, --connect=URI
           Specify the hypervisor connection URI

       -w, --wait
           Wait for the domain to start up before attempting to connect to the
           console

       -r, --reconnect
           Automatically reconnect to the domain if it shuts down and restarts

       -z PCT, --zoom=PCT
           Zoom level of the display window in percentage. Range 10-400.

       -d, --direct
           Do not attempt to tunnel the console over SSH, even if the main
           connection URI used SSH.

       -a, --attach
           Instead of making a direct TCP/UNIX socket connection to the remote
           display, ask libvirt to provide a pre-connected socket for the
           display. This avoids the need to authenticate with the remote
           display server directly. This option will only work when connecting
           to a guest that is running on the same host as the virt-viewer
           program. If attaching to the guest via libvirt fails, virt-viewer
           will automatically fallback to trying a regular direct TCP/UNIX
           socket connection.

       -f, --full-screen
           Start with the window maximised to fullscreen

           If supported, the remote display will be reconfigured to match the
           physical client monitor configuration, by enabling or disabling
           extra monitors as necessary. This is currently implemented by the
           Spice backend only.

           To specify which client monitors are used in fullscreen mode, see
           the CONFIGURATION section below.

       --debug
           Print debugging information

       -H HOTKEYS, --hotkeys HOTKEYS
           Set global hotkey bindings. By default, keyboard shortcuts only
           work when the guest display widget does not have focus.  Any
           actions specified in HOTKEYS will be effective even when the guest
           display widget has input focus. The format for HOTKEYS is
           <action1>=<key1>[+<key2>][,<action2>=<key3>[+<key4>]].  Key-names
           are case-insensitive. Valid actions are: toggle-fullscreen,
           release-cursor, secure-attention, smartcard-insert and smartcard-
           remove.  The "secure-attention" action sends a secure attention
           sequence (Ctrl+Alt+Del) to the guest. Examples:

             --hotkeys=toggle-fullscreen=shift+f11,release-cursor=shift+f12

             --hotkeys=release-cursor=ctrl+alt

           Note that hotkeys for which no binding is given are disabled.
           Although the hotkeys specified here are handled by the client, it
           is still possible to send these key combinations to the guest via a
           menu item.

       -k, --kiosk
           Start in kiosk mode. In this mode, the application will start in
           fullscreen with minimal UI. It will prevent the user from quitting
           or performing any interaction outside of usage of the remote
           desktop session.

           Note that it can't offer a complete secure solution by itself. Your
           kiosk system must have additional configuration and security
           settings to lock down the OS. In particular, you must configure or
           disable the window manager, limit the session capabilities, use
           some restart/watchdog mechanism, disable VT switching etc.

       --kiosk-quit <never|on-disconnect>
           By default, when kiosk mode is enabled, virt-viewer will remain
           open when the connection to the remote server is terminated. By
           setting kiosk-quit option to "on-disconnect" value, virt-viewer
           will quit instead. Please note that --reconnect takes precedence
           over this option, and will attempt to do a reconnection before it
           quits.

       --id, --uuid, --domain-name
           Connect to the virtual machine by its id, uuid or name. These
           options are mutual exclusive. For example the following command may
           sometimes connect to a virtual machine with the id 2 or with the
           name 2 (depending on the number of running machines):

               virt-viewer 2

           To always connect to the virtual machine with the name "2" use the
           "--domain-name" option:

               virt-viewer --domain-name 2

CONFIGURATION
       A small number of configuration options can be controlled by editing
       the settings file located in the user configuration directory:

           <USER-CONFIG-DIR>/virt-viewer/settings

       This file is a text file in INI format, with application options in the
       [virt-viewer] group and per-guest options in a group identified by the
       guest's UUID. The application options should not be edited manually.
       There is also a special [fallback] group which specifies options for
       all guests that don't have an explicit group.

       For each guest, the initial fullscreen monitor configuration can be
       specified by using the monitor-mapping key. This configuration only
       takes effect when the -f/--full-screen option is specified.

       The value of this key is a list of mappings between a guest display and
       a client monitor. Each mapping is separated by a semicolon character,
       and the mappings have the format
       <GUEST-DISPLAY-ID>:<CLIENT-MONITOR-ID>.

       For example, to map guest displays 1 and 2 to client monitors 2 and 3
       for the guest with a UUID of e4591275-d9d3-4a44-a18b-ef2fbc8ac3e2, use:

           [e4591275-d9d3-4a44-a18b-ef2fbc8ac3e2]
           monitor-mapping=1:2;2:3

       The monitor-mapping must contain ids of all displays from 1 to the last
       desired display id, e.g. "monitor-mapping=3:3" is invalid because
       mappings for displays 1 and 2 are not specified.

EXAMPLES
       To connect to the guest called 'demo' running under Xen

          virt-viewer demo

       To use GUI for connecting to a guest running under QEMU

          virt-viewer --connect qemu:///system

       To connect to the guest with ID 7 running under QEMU

          virt-viewer --connect qemu:///system 7

       To wait for the guest with UUID 66ab33c0-6919-a3f7-e659-16c82d248521 to
       startup and then connect, also reconnecting upon restart of VM

          virt-viewer --reconnect --wait 66ab33c0-6919-a3f7-e659-16c82d248521

       To connect to a remote console using TLS

          virt-viewer --connect xen://example.org/ demo

       To connect to a remote host using SSH, lookup the guest config and then
       make a tunnelled connection of the console

          virt-viewer --connect qemu+ssh://root@example.org/system demo

       When using a SSH tunnel to connect to a SPICE console, it's recommended
       to have ssh-agent running to avoid getting multiple authentication
       prompts.

       To connect to a remote host using SSH, lookup the guest config and then
       make a direct non-tunnelled connection of the console

          virt-viewer --direct --connect xen+ssh://root@example.org/ demo

AUTHOR
       Written by Daniel P. Berrange, based on the GTK-VNC example program
       gvncviewer.

BUGS
       Report bugs to the mailing list
       "http://www.redhat.com/mailman/listinfo/virt-tools-list"

COPYRIGHT
       Copyright (C) 2007-2014 Red Hat, Inc., and various contributors.  This
       is free software. You may redistribute copies of it under the terms of
       the GNU General Public License
       "https://www.gnu.org/licenses/gpl-2.0.html". There is NO WARRANTY, to
       the extent permitted by law.

SEE ALSO
       virsh(1), "virt-manager(1)", "spice-client(1)", the project website
       "http://virt-manager.org"

perl v5.26.2                      2018-07-27                    VIRT-VIEWER(1)

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