Classroom VNC

[adamyoung]

We have VNC installed on all our classroom comps, is it possible to have a preview of all these screens at the same.

As VNC can work in the web browser has anyone managed to create a set up where a thumbnail of all the comps in the class are shown?

I'm looking for a free way to do it, we have netop in some rooms but the budget wont stretch to all rooms at the min.

Thanks all!

[Geoff]

http://vncon.chronetal.co.uk/index.php?page=main

[adamyoung]

http://vncon.chronetal.co.uk/index.php?page=main

Is there anything that is more flexible that would allow you to see all screens at the same time is a net op esq fashion?

[ChrisH]

Yes just increase how many remote screens appear on screen at once.

[Geoff]

VNcon does..

[adamyoung]

I'm slighty concerned about this progs sp2 issues, and the fact that I had it working on a W2K but then the next day it couldnt detect any comps.

[ajbritton]

For VNC to work on XP SP2, you need to open TCP port 5900. This can easily be done using Group Policy to affect all required computers.

[ChrisH]

Hes refering to the fact that it has trouble detecting computers through a discover method the program uses. I found that is a problem but you just have to make up a list of your rooms and computers and let DNS do the rest finding them.

[ajbritton]

Ah, the XP connection limit...?

[ChrisH]

Yes its something along those lines

But anyway, to the point, Microsoft have recently imposed limitations to the amount of half opened outbound connections a program can make in their latest service pack for Windows XP: SP2. If you are interested in the details then look here: http://www.microsoft.com/technet/pro.../sp2netwk.mspx then scroll to the TCP/IP section and read the section titled "Limited number of simultaneous incomplete outbound TCP connection attempts".

If you manually make your lists though it works fine. Bit of a pain but you only need do it once and you can use a script or some excel trickery to help you build your lists if you ahve a sensible naming scheme.

[mark]

DHCP screws up VNCon - it messes with the comp names etc. To solve that you need static or reserved IP's.

[ajbritton]

@mark - Why on earth is that? Is your DHCP scope applying DNS suffixes? You should not need that under 2K/XP as the domain suffixe is configured automatically when the domain membership changes. I only ever hand out IP lease, gateway and DNS servers nowadays. Even DNS can be overridden by GP, but I suppose you need an initial setting so PC can connect to DC.

[ChrisH]

were not painting a very good picture of VNCon here really are we

[mark]

@ajb - it's something I saw in a forum and it does work for me. maybe VNCon caches the DNS names so causing the problem. You can't search by name I think. And computers are listable/ groupable by IP address. Not much use in a DHCP environment.

[Rozzer]

I having troublewith authenticing with machines which i do a remote install to

Anyone had this problem?

Ross