Such things are not resolved over mails. We need a skype call and we should use remote debugging tools like teamviewer or vnc or ssh/tmux.
Anyway see below. On Thu, May 10, 2012 at 12:56 PM, poomalairaj <poomalaira...@gmail.com> wrote: > It seems my post didn't reach the mailing list. So I am reposting again. > > >> What is reverse ssh? You mean remote port fwd? >> > It is not exactly remote port fwd. It is binding remote ssh service in the > local port. I mean using -R switch in ssh. > That is technically called remote port forwarding, if you wish to call it reverse ssh, then go ahead. > I tried both -X and -Y but I can feel that it is not logical because I am > forwarding X over 3 machines. I will explain the problem clearly once again. > Assume the following. > I have 3 machines. > 1. protected pc - a pc behind firewall / NAT / router (so you can not > directly connect to this machine on any port.) - user name is > "poomalai_protected" Okay. > 2. My desktop - In this machine I want to see the GUI apps / whole desktop > environment of "protected pc". User name is "poomalai_desktop" > 3. My webserver - A hosted machine with ssh access. I can forward or use > any random port number in this machine. but I am not root in this machine. > (User name is "poo") > Here you could have correctly identified that "protected pc" is my N900 > > Now, the problem is I want to access "protected pc" from my desktop. I use > the following command on the protected pc > > ssh -R 22222:localhost:22 poo@mywebserver > Now the "protected pc" is logged in to my webserver and I run "top" command > to keep the ssh session alive. and leave the machine logged in to my web > server > > Now I go to "My Desktop" and connect to the webserver as usual > ssh poo@webserver > > Once logged in, I run the following > ssh poomalai_protected@protectedpc -p 22222 > > Now I get the bash and I can run commands on protected pc. But I could not > run any GUI apps. > I usually use Xephyr to run any GUI app or the whole desktop session when I > use straight ssh. That means I just use -X to connect to the machine I want > to connect and set DISPLAY env variable to the port where Xephyr is running > and GUI apps(like firefox, gedit etc) / the whole desktop session (if I use > xfce4-session in ssh) will be displayed inside the Xephyr window. > > Now my question: Is there a way similar to this to forward X from my > "protected pc" to "web server" to "my desktop"? > I am open to use any program. You can suggest vnc or normal X forwarding or > anything. The objective is to access "protected pc" somehow. Thats it. > Please suggest opensource solutions alone. I am not interested in > teamviewer or something similar. teamviewer does not work on OpenBSD but it is incredible. Very bandwidth efficient and quite at the level of open source quality and convenience. > Can freenx be used to solve this problem? Any suggestions? > > And 0, I tried your solution > > [N900]$ ssh -R 22222:localhost:22 poo@mywebserver >> >> [Desktop]$ ssh -t -X poo@mywebserver "ssh -X user@localhost -p 22222" > > > and got the following. > Warning: No xauth data; using fake authentication data for X11 forwarding. > ssh_exchange_identification: Connection closed by remote host > Connection to xxx.xxx.xxx.xx closed > I don't think it is as complicated as you think. But as I said, I am in the middle of too many things and e-mail is not the way to go about this. But I can assure you that this can be solved easily if you think through. Best of luck. -Girish -- Gayatri Hitech http://gayatri-hitech.com _______________________________________________ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
