rdesktop can't conect remote pc with reverse ssh tunnel

luofeiyu · 07-26-2016, 07:19 AM

Pc a can't connect pc b directly.No firewall build on both pc a and pc b.
Pc b is running win7 ,port 3389 is opened for remote desktop connection.
A reverse ssh tunnel created on pc b.

ssh -fNg -R 10020:127.0.0.1:3389 root@vps_ip

Now to login into vps_ip from pc a.

ssh root@vps_ip
rdesktop 127.0.0.1:10020
ERROR: Failed to open display:

How to rdesktop my pc b?

gda · 07-26-2016, 08:56 AM

Have you tried to add the option -X (or -Y) to ssh?

jnihil · 07-28-2016, 09:06 AM

Like gda wrote, you can't start an X program from an ssh terminal without specifying the X DISPLAY.
After the tunnel is setup, you could try something like:

Code:

$ ssh -X root@vps_ip xterm

then, at the xterm session:

$ rdesktop 127.0.0.1:10020

luofeiyu · 07-31-2016, 02:42 AM

ssh -X root@vps_ip
root@vps_ip's password:
Last login: Sun Jul 31 03:28:58 2016 from 114.114.114.114
/usr/bin/xauth: file /root/.Xauthority does not exist
[root@localhost ~]# rdesktop 127.0.0.1:10020
ERROR: 127.0.0.1: unable to connect

I got strange error info.

gda · 07-31-2016, 03:12 AM

Probably that's because the port 10020 is not forward anymore on the 3389 on which pc b is actually listening.

jnihil · 08-03-2016, 06:18 AM

As gda said.
I did write "After the tunnel is setup".