On 29 December 2014 at 19:09, Attila-Mihaly Balazs <dify....@gmail.com> wrote:
> My suggestion for improvement would be:
> - change the behaviour of "-vnc :port" such that it listens on "127.0.0.1"
> when the IP isn't specified
> - if host is "0.0.0.0" (perhaps also include any routable IPv4 addresses -
> and non-link-local IPv6 addresses) and no authentication method is specified
> error out with a message like "It is recommended that you DO NOT expose the
> VNC server directly to the public internet. If you are sure of what you are
> doing, please specify an authentication method for the VNC server. See the
> documentation for more details"

Seems reasonable to me. Some questions:
 * do we need an option for "yes, I know what I'm doing and do not
   want any authentication" ?
 * how many of these VMs are configured for wide-open VNC by libvirt or
   similar management tool rather than by the user directly running QEMU?

thanks
-- PMM

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