X11

Xvfb

Xvfb starts a virtual framebuffer on a machine without X11. We use the following packages:

Start Xvfb on computer1:

Xvfb :99 -screen 0 1024x768x16

The start of a window manager enables the fullscreen mode on surf browser:

DISPLAY=:99 openbox

Start a browser on this computer:

DISPLAY=:99 surf -u 'Testbrowser' -F http://limejack.org

Start a x11vnc on this computer:

x11vnc -display :99 -listen localhost -xkb

On a remote Computer login via ssh with X11:

ssh -p <SSHPORT> -X user@computer1

Then run on ssh:

vncviewer localhost

You see the virtual display from computer1.

A remote access to X11 via ssh need the x option:

ssh -X user@remote

Please check as user the file .Xauthority.

ls -al ~/.Xauthority

If missing the file use as user

touch .Xauthority

Check xauth:

xauth list

You get a line like: foo/display:21 COOKIE-foo bar-values

Become su via su:

su

Please check as root the file .Xauthority.

ls -al ~/.Xauthority

If missing the file use as root

touch .Xauthority

The hot line is:

xauth add foo/display:21  COOKIE-foo  bar-values

Check it via

x-terminal-emulator