[AG-TECH] Collaborative VNC

Natalia Costas Lago natalia at cesga.es
Fri Jul 22 07:49:16 CDT 2005


Collaborative VNC is something i found websurfing the Internet (not 
something we developed). As far as I have seen, it's some kind of add-on for 
tightvnc. So I presume the performance is more or less the same.

The only solution I know for slow VNC is migrating to ScreenStreamer (non 
comercial, or IGPix? on the comercial side... they have different features 
though). That's what we plan to use when broadcasting to the AG so far.

What resolution r u talking about? .... I presume it is higher than 

Related to your security concern, it probably has the same security risks 
than tightvnc:

http://www.tightvnc.com/faq.html#howsecure (not too safe then..)


----- Original Message ----- 
From: "Julia Mullen" <julia.mullen at gmail.com>
To: "Natalia Costas Lago" <natalia at cesga.es>
Cc: "ag-tech" <ag-tech at mcs.anl.gov>
Sent: Thursday, July 21, 2005 5:09 PM
Subject: Re: [AG-TECH] Collaborative VNC

Hi Natalia -

This sounds great!  Have you resolved the issue of slow VNC when you have
multiple sites?  In addition, I have seen a number of issues arising
when a presenting site wants to share software or images that require
high resolution, such as biomedical applications.  Do you have any
experience with this?

and the final question that users are forever asking me - what are the
security risks of collaborative-vnc?  I assume they are the same as
for vnc, is that correct?

Meanwhile, for my other apps I look forward to trying it out.


On 7/21/05, Natalia Costas Lago <natalia at cesga.es> wrote:
> For those who might be interested:
> For Linux only.. non production systems yet..
> http://benjie.org/software/linux/collaborative-vnc/
> Collaborative VNC (currently for Unix only) makes it easier for multiple
> people to share a remote desktop. Each member of a shared desktop gets a
> different colored mouse cursor, and can see everyone else's mouse cursors
> moving around the desktop at the same time. Multiple methods are provided
> for managing who has control of the desktop at any given time.
> -----------------------------------
> Natalia Costas Lago
> email: natalia at cesga.es
> Centro de Supercomputacion de Galicia (CESGA)
> Avenida de Vigo, s/n Campus Sur
> 15706 Santiago de Compostela - SPAIN
> Tel:   +34  981 56 98 10
> Fax:  +34  981 59 46 16
> http://www.cesga.es/

Julia Mullen, Ph.D
MIT Lincoln Laboratory
244 Wood St.
Lexington, MA
Phone: 781-981-0839

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