Re: [libvirt] [PATCH 13/17] qemu.conf: remove vnc_auto_unix_socket
On Thu, May 05, 2016 at 05:41:45PM +0100, Daniel P. Berrange wrote:
On Thu, May 05, 2016 at 12:39:24PM -0400, Cole Robinson wrote:
> On 05/05/2016 12:20 PM, Pavel Hrdina wrote:
> > This config option is broken, it will generate unix socket even if
> > attribute 'listen' or listen element is specified.
> >
> > Also following commit will makes this option obsolete.
> >
> > Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com>
>
> IMO this is not acceptable. For one, there's no precedent for removing a
> qemu.conf option; IMO it's part of our API.
>
> But the reason this option exists is so site admins can make listen
> type=socket/socket= the graphical default, as opposed to a wide open
> listen=127.0.0.1 that any user on the host can trivially access. VNC passwords
> are known insecure, so locking down the listening mechanism is really the only
> (current) way to secure VNC.
...TLS with x509 certs and/or SASL is an alternative current secure
VNC mechanism.
I agree though its desirable to have a global way to make VNC listen
UNIX sockets instead of localhost
I was afraid that someone would object to this patch :) but it worth the try.
Anyway, I'll redo this so the option is still there and in that case I'll also
add similar option for Spice.
Pavel