Reverse Tunnelling -- SSH - Then VNC -- Question

[Jessani, Karim (CSS)]

There is still no -R command in the SSH command line you gave me...its okay right ???
2nd thing..how to "Enable" Reverse SSH Tunnels at work ?...is there a Config file to edit? I was under the impression by just putting the -R command, this will enable a Reverse Tunnel?


THANKS
Karim 

-----Original Message-----
From: James Weatherall [mailto:jnw "at" realvnc.com]
Sent: December 9, 2005 12:03 PM
To: Jessani, Karim (CSS); vnc-list "at" realvnc.com
Subject: RE: Reverse Tunnelling -- SSH - Then VNC -- Question


Karim,

When you said "reverse connection", I assumed you meant a VNC
reverse-connection (i.e. one made by a server to a viewer).

For what you want, you need to run, from work:

ssh -L5901:localhost:5900 12.13.14.15

And then, when you are at home & have triggered the ssh command:

vncviewer :1

Which will connect to your home PC's port 5901 and through the tunnel to
port 5900 on your server at work.

Note that you must have SSH reverse-tunnels enabled for this to work, which
they're almost certainly not by default.

Cheers,

Wez @ RealVNC Ltd.


> -----Original Message-----
> From: vnc-list-admin "at" realvnc.com 
> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Jessani, Karim (CSS)
> Sent: 09 December 2005 15:21
> To: vnc-list "at" realvnc.com
> Subject: RE: Reverse Tunnelling -- SSH - Then VNC -- Question
> 
> Sorry..this is what I want....Port 22 is the only "Open" port 
> at "work" so, thats why I can only use SSH to connect to 
> "HOME", now...what I do is send an email to myself at work 
> from home and a macro opens up VNC to add a "client" and thus 
> enabling me to connect to work from Home..(thats why I need 
> to use the Reverse Tunnel Option)...
> I can already establish my SSH Connection from Work to Home, 
> but now I need a reverse so that when I am at Home, using SSH 
> to tunnel, then VNC to control the work computer...my 
> properties for VNC are set at auto, so Port 5900 (Main) and 
> Port 5800 (Http)....somehow I need to use the port 22 for my 
> connection back to Work from Home...
> 
> 
> Thanks ALOT
>  Karim  
> 
> -----Original Message-----
> From: James Weatherall [mailto:jnw "at" realvnc.com]
> Sent: December 9, 2005 10:13 AM
> To: Jessani, Karim (CSS); vnc-list "at" realvnc.com
> Subject: RE: Reverse Tunnelling -- SSH - Then VNC -- Question
> 
> 
> Karim,
> 
> The problem you have is that you are telling ssh to forward 
> connections to
> port 5900 on the ssh server machine to port 6500 on the ssh 
> client machine,
> and are then telling VNC Server to connect to port 6500 or 5500.
> 
> Assuming that what you are actually trying to do is connect 
> from work to
> home via SSH, then connect out from work to a listening 
> viewer running at
> home, you probably want:
> 
> ssh -L 5501:localhost:5500 12.13.14.15 
> 
> And then connect VNC Server out to it with:
> 
> winvnc4 -connect localhost::5501
> 
> This will cause your work desktop to display on your home 
> system, assuming
> that a listening viewer is running on port 5500 on that system.
> 
> But I'm not sure that that's what you mean..
> 
> Wez @ RealVNC Ltd.
> 
> 
> > -----Original Message-----
> > From: vnc-list-admin "at" realvnc.com 
> > [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Jessani, 
> Karim (CSS)
> > Sent: 09 December 2005 14:20
> > To: vnc-list "at" realvnc.com
> > Subject: Reverse Tunnelling -- SSH - Then VNC -- Question
> > 
> > I have installed and running an SSH Server at "work"  ...only 
> > port 22 is open...
> > installed VNC viewer and server at work and home
> > 
> > now I can connect to "home" using SSH ..but how to do a 
> > "reverse" connection back to work and with that connect to 
> > "work" using VNC
> > 
> > so I did the following:
> > ssh -R 5900:127.0.0.1:6500 12.13.14.15
> > 
> > I can then connect perfectly..BUT...
> > 
> > with RealVNC I add a new client (at work, while the listener 
> > is running at home) -> i type the following
> > Localhost::6500 -- does not work
> > localhost::5500 -- does not work
> > 
> > 127.0.0.1::5500 -- infinite loop of windows
> > 
> > Anyone know what the heck I am doing wrong???
> > The issue I have is that port 22 is the only one open so I 
> > need to use that as the "Forwarding" port from Home back to Work....
> > 
> > THANKS ALOT 
> > __________________
> > Karim J 
> > _______________________________________________
> > VNC-List mailing list
> > VNC-List "at" realvnc.com
> > To remove yourself from the list visit:
> > http://www.realvnc.com/mailman/listinfo/vnc-list
> _______________________________________________
> VNC-List mailing list
> VNC-List "at" realvnc.com
> To remove yourself from the list visit:
> http://www.realvnc.com/mailman/listinfo/vnc-list