Re: SSH Tunneling with WinVNC Server/client

From: samjack (nospam_at_device.null)
Date: 12/20/03 

Date: Sat, 20 Dec 2003 13:16:46 -0600

Here is an exercise for doing VNC over SSH using cygwin.
http://www.starinfosec.com/gsec/ExerciseSupplemental-Cygwin-VNC.pdf

As far as entering old VNC password. VNC passwords are in the registry and
user profile specific. So if you get into changing the passwords the one
before a user is logged in and after can be different.

"newbie" <newbie@reply.news.group> wrote in message
news:brn4d2$g90$1@sparta.btinternet.com...
> I have the following set up
>
> VNC Server:
>
> Runningg Windows 2000 Professional SP4
>
> Open SSH (as a Windows Service)
>
> RealVNC run as a Windows Service (password set whilst user Myadmin is
logged
> on)
>
> User set up:
>
> Myadmin -Administrator group
>
> Mylocal -restricted user
>
> Following regiistry key set and VNC service restarted:
>
> HKEY_LOCAL_MACHINE\Software\ORL\WinVNC3\AllowLoopback=1
>
> HKEY_LOCAL_MACHINE\Software\ORL\WinVNC3\LoopbackOnly=1
>
> VNC Client:
>
> Real VNC Client
>
> Open SSH client
>
> Windows XP Professional SP2
>
>
>
> The following works:
>
> Setting 1:
>
> 1) Myadmin logs on to Win2K machine
>
> 2) client issue sshh -C -L:5901:127.0.0.1:5900 mylocal@Server'sIP
>
> 3) enter mylocal's Windows password on SSH
>
> 4) Enter WinVNC's password when prompted
>
> 5) connected but slow connection
>
> The following does not quite work:
>
> Setting 2:
>
> 1) Mylocal logs on to Win2K machine
>
> 2) client issue sshh -C -L:5901:127.0.0.1:5900 mylocal@Server'sIP
>
> 3) enter mylocal's Windows password on SSH
>
> 4) Have to enter an OLD WinVNC password!! (no WinVNC password was set
whilst
> logged on as mylocal), have to use the first WinVNC password set whilst
> logged on as myadmin
>
> 5) after successful authentication, all I get is a blank black screen on
the
> viewer, connection info indicate a line speed of 0kbit/s, Depth level=8
> (network monitor indicate no network activity), but SSH appears to be
> working, on the terminal I couldd CD into different directories and do
dir,
> etc.
>
> How could I get VNC/SSH working together on setting 2 above?
>
>

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