Siegfried Heintze wrote: [snip] > > (2) For reasons I don't understand, there was a conflict between my router's > > sshd and my cygwin's sshd so I resolved the problem by changing the cygwin's > > configuration file to start sshd on a different port. Now, using a Red Hat 8 > > client, I can use both rdesktop and ssh to create two different simultaneous > > sessions on my win2003 server. > > > > However, I cannot seem to start an X session from my "ssh -X -p 892 > > [EMAIL PROTECTED]" session. I tried running "explorer ." and that > > just hung. OK, that was not an X program. Then I tried > > /usr/X11R6/bin/xclock and it said it could not open the display. Having > > already done a xhost+ <remote wan address> before running ssh I tried export > > DISPLAY=<client lan address>:0.0 but that did not help: it still could not > > open the display.
If you are using ssh -X or -Y you don't need to set DISPLAY, in fact ssh already did set it. But if you set DISPLAY then X uses the normal ports and those will have to be opened/redirected on the firewall. > > Do I need to punch a whole in my client's firewall? I doubt the will let me > > do that. Not if you only use ssh. But take in consideration that you changed ssh to use port 892, that one is the one that will have to be opened. > > Don't I need to start the xserver? In the remote system? no. [snip] > > winCheckDisplayNumber - Cygwin/X is already running on display 0 It was running already but it's not needed unless you want to use VNC. > > (3) What about vnc? I have installed RealVNC on both the RH8 client and the > > Windows 2003 server. For VNC you'll need to open port 5901 (or 5801 for http); this is only for the first window, it really is 5900 + display number, in case you have more than one user connecting to the same machine. > > Is there also a cygwin VNC? I don't remember seeing one. No. > > Can I make vnc tunnel thru ssh? Would I use the -L or the -R qualifier > > on ssh? What would that look like? Yes. You have to start the VNC server and then (assuming display 1 is used): client machine# ssh -NfC -L 5901:server.name.or.ip:15901 [EMAIL PROTECTED] server machine# ssh -gN -L 15901:localhost:5901 [EMAIL PROTECTED] The numbers may have to be changed (as I said above) depending on what starting the server reported as display number or how is setup to start if you start it from the X server. On the client you use as VNC server "localhost:1". HTH -- René Berber -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/