Seminar streaming (might have been Re: [plug] Magic Mirrors)

[Cameron Patrick]

On Mon, Feb 24, 2003 at 02:40:40PM +0800, Harry McNally wrote:

| > If we want a similar setup for VNC (one outgoing connection to a
| > main server that does the splitting), somebody feel like doing some
| > scrounging around for what there is? I haven't looked into all the
| > solutions from the URL that Leon's posted yet. Getting to that soon
| > too :)

TightVNC will do this as-is.  Run Xtightvnc on the ISP With Bandwidth,
with a password required for non-view-only access.

(see the very top entry of http://www.tightvnc.com/WhatsNew.txt for
TightVNC 1.2.8; it hasn't made its way into Debian yet, but that's not a
show-stopper)

Fire up a vncviewer with full control on the demo machine, and start
xterms (or whatever, as necessary) that display on the VNC server,
possibly using lbxproxy, eg:
	DISPLAY=fastmachine.iinet.net.au:7.0 xterm &

I'm not sure how taxing this would be CPU-wise on the server, and it
would be rather inefficient bandwidth-wise for the lecture theatre.
Tight VNC uses JPEG and Zlib compression so hopefully there aren't too
many dwellers-in-remote-locations out there...

TightVNC + IRC would sort-of almost work reasonably on a 56k connection,
and you should be able to do VNC + IRC + Speex without too much pain on
an ADSL line.

I'd stay away from x0rfbserver which Leon suggested, as from what I can
tell, it uses the same hacky imprecise update method that WinVNC uses.
On the other hand, it claims to come with a system to record and play
back VNC events.  I haven't managed to get it to work, which is not
aided by the fact that the Debian package for it (rfb) seems to be missing
some files.  If anyone knows how to get xplayfbs and xrfbviewer to stop
grizzling about not being able to find folder.t.xpm, please don't tell
me :-P

| Praps we need to have a single point of contact but a team of handy helpers.

*nervously raises hand*  I'm willing to help out... probably :)

Cheers,

Cameron.