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pgb
Asked: 2015-09-08 06:02:00 +0800 CST

Enable remote VNC for kvm+qemu

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I'm using kvm+qemu on Ubuntu 14.04 Server.

I need to enable VNC for remote hosts, so I edited /etc/libvirt/qemu.conf and uncommented vnc_listen = "0.0.0.0" there.

My problem, is that I don't know how to reload this configuration file without restarting all the hosts. Already tried:

service libvirt-bin reload reload libvirt-bin and killall -HUP libvirtd without success. Is there a way to reload this configuration file? Or do I need to restart all the guests?

14.04

2 Answers

  1. Do not do it in /etc/libvirt/qemu.conf, but rather do it in the definition file for the guest itself, for example in /etc/libvirt/qemu/serv64_dev.xml. here is an example of the relevant section:

    <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0'>
  <listen type='address' address='0.0.0.0'/>
</graphics>
<video>
  <model type='vmvga' vram='9216' heads='1'/>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>

    Use virsh edit domain name to edit, example virsh edit serv64_dev (from any directory), as it does some additional checks upon exit.

    The default editor used by virsh edit is as defined by the $EDITOR environment variable, or VI if it does not exist. add export EDITOR="/bin/nano" to your ~/.bashrc file to set, for example, nano as your default editor.

    • 1

  2. You need to allow the port in Ubuntu's firewall as well.

    root@ubuntu:~# ufw allow 5901
Skipping adding existing rule
Skipping adding existing rule (v6)
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