Re: [Qemu-discuss] Confusing use of VNC port

[Brian Rak]

On 7/25/2014 1:59 PM, Dale R. Worley wrote:
> > From: Brian Rak <address@hidden>
> >
> > Failed to start VNC server on `127.0.0.1:4105': Failed to bind socket:
> > Address already in use
> >
> > This error message is *highly* confusing.  '127.0.0.1:4105' in any other
> > software would mean it was trying to bind to 127.0.0.1, port 4105.  In
> > qemu's terms, it really means port 10005.  Why is this like this?
> >
> > Is there any reason this can't just refer to the actual port it's trying
> > to bind?
> For that matter, where did the "4105" come from?
>
> Dale

We run multiple instances per machine, so we have to assign unique VNC 
ports to all of them.  We pass this in (via libvirt), via the command 
line arg '-vnc 127.0.0.1:4105'.  The port number there is also 
confusing, but I realize it would not be backwards compatible to change 
how it behaves.  It's not as confusing in the command line, because we 
rarely need to look at it.