Hello Forum,

my router (RH9) manages the internetconnection via ISDN with DialOnDemand.

Now I want to display the status of the connection with xisdnload on my client. I think that I can start it on the router with
xisdnload -display IP.of.the.client:0.0
But unfortunately I get the message: display not found.

If I connect to the router with ssh and then type xisdnload, this program is displayed on the screen of the client. But I want to integrate the neccassary call into a startup-script of the router.

Google only shows solutions for a remote login and a complete redirection of the X-server, but not for a easy and simple executing of programs remotely.

Many thanks for your help

Frank Becker

Try to use 'ssh' with X11 forwarding the information will be encrypted before it's transmitted over the network, and doesn't require another connection either.

set these values in /etc/ssh/sshd_config:
X11Forwarding yes
X11UseLocalhost yes

then update your sshd process, you could even run this command from an ssh session!
killall -HUP sshd

Then, connect to the server with "ssh -X you@hostname", and start an X program. Don't configure your client to enable X forwarding automatically (in /etc/ssh/ssh_config), because you expose your display to the server.


If you want to redirect programs to another display, this could work as well: export DISPLAY=hostname:0.0 omit the hostname if you redirect to another display at the same machine (for example another X, or Xvnc)

Hello yapp,

thank you for the fast reply.

Exactly this: export DISPLAY=hostname:0.0 is what I wanted and what I tried. But if I then start any X-Application like xeyes (with no params) the box tells:Xlib: connection to "hostname:0.0" refused by server
Xlib: No protocol specified
Error: Can't open display: hostname:0.0

I also tried xon hostname xeyes like described in the manpage of X but without success.

Your solution with ssh needs to implement certificates for automate login. That is too much work for a small job.

Best regards to the Netherlands.

Frank

It seams that the "connection is refused" by the server. Use 'xauth' to authorize a user/machine to your display.

This is a security percausion, since you authorize someone to display popups at your screen, but also create a screenshot, or place a hook in your display (monitor keystrokes). X applications communicate with each other; for example, when you copy-paste text. (using the 'select text' + 'middle mouse' button trick) ..there is a 'sandbox' program to prevent this, but it causes much problems of your apps try to communicate.

If you want a secure connection, just use ssh+X11 forwarding, but I could understand this is a little much effort if you want to display a simple server-status program


..best regards to germany too