[K12OSN] remote login

Will Hatch fhkms at adelphia.net
Wed Sep 22 14:58:44 UTC 2004

I don't completely understand your instructions yet, although they seem very good and I think I could figure this out.  But, I'm thinking that I need a static ip address for my k12box, which I do not have.  Adelphia provides internet for free because we are a school within a certain distance from the line.  Do I need a static ip?  Thanks Petre
> From: Petre Scheie <petre at maltzen.net>
> Date: 2004/09/22 Wed AM 10:42:40 EDT
> To: "Support list for opensource software in schools." <k12osn at redhat.com>
> Subject: Re: [K12OSN] remote login
> With a few assumptions, 1) that you can ssh into the Ipcop box from 
> wherever you'll be doing your presentation; 2) that the VNC server is 
> running on the K12lstp box (which it is by default, but some take it out 
> if they have no use for it); you'll have a Linux box at the 
> demonstration site--I don't know if this can be done with a Windows 
> box.  With those things in place, you can do this:
>  From the remote location (where you'll be standing when doing your 
> presentation) at a shell prompt, type
> ssh -C -L 3700:k12lstpbox:5900 ipcopbox
> where k12ltspbox is the name of the k12ltsp server (and ipcop knows the 
> address of that box--if not, use the address of the ltsp box), and 
> ipcopbox is the publicly accessible name or address of your school/ipcop 
> firewall.  This assumes that the ID you are using on the linux box at 
> the demo site is valid on the ipcop box; if not, add '-l valid_id' where 
> valid_id is a legit ID on the ipcop box.  Once that's connected, on the 
> linux box at the demo site, fire up vncviewer and point it at 
> localhost:3700, and you should get the LTSP login screen just as if you 
> were at the school and pointed vncviewer at the server.
> What the above command does is creates a compressed (-C) tunnel in which 
> anything directed at port 3700 is sent to the ipcopbox which then 
> automatically directs the traffic to port 5900 (where vncserver listens) 
> on the K12ltspbox.
> I use this regularly to securely connect to remote LTSP servers where I 
> need to actually see the desktop in action.  It can be a bit slow, 
> depending on the size of the pipes and the load on the ipcop box and the 
> ltsp server, but it's certainly usable, especially for a demo.  You 
> could even take, say, two or three laptops (borrow some and use knoppix 
> disks to get an instant linux client) to the demo site and have them all 
> doing this to really show off.  I'd test it beforehand though just to 
> make sure it doesn't bog down too much.
> Petre
> Will Hatch wrote:
> >Hi all,
> >
> >I am taking a education class where we have to make a powerpoint presentation on a educational topic.  I want to talk about open source software in schools, and to show what I have done here at this school with recycled computers and the k12 package.  I though it would be cool to be able to remotely login to my server while doing my powerpoint presentation.  Then, I could show how it actually works.  How do I do this and is it too complicated for this rookie?  Also, I have a Ipcop box between my cable modem and my k12 box, as a firewall/router with dansguardian content filtering; in case this complicates things.  Thanks!
> >
> >
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> >  
> >
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