Accessing guests internal VNC through noVNC from the WebIF?

[shawly]

Hi,

I'd like to know if I could disable the VNC that comes with the virtual machine and somehow forward the machines own VNC server.

Because I've setup an OS X machine, I currently use with SPICE and virt-viewer which works okay, but I'd like to use OS Xs own VNC through noVNC.
Would this work with iptables? If yes, how exactly?

Thanks!