On Sat, 24 Apr 2004, [EMAIL PROTECTED] wrote:
>
> I played with your x11vnc program last week, and I'm most impressed with
> it. It is currently being integrated into the next release of LTSP.
Very good; thanks! I recommend using a recent CVS snapshot or our
0.7 prerelease tarball:
http://libvncserver.sourceforge.net/LibVNCServer-0.7pre.tar.gz
We've fixed a lot of bugs since 0.6 and I've added a couple x11vnc
performance improvements (along with the inescapable feature creep).
I will try to convince the other libvncserver developers to do the 0.7
file release in May sometime, but any changes to x11vnc will be small.
> I've been following the startx script in redhat, to basically create the
> .Xauthority file in /tmp of the workstation (It's a ramdisk only
> accessable from the thin client). I need this so that the ssh client
> can forward the Xauthority info to remote machines where you can then
> run things. I think what I'm doing will easily work with x11vnc as
> well.
That sounds like a very good infrastructure. Once the XAUTHORITY data
is available in a standard place, it is a simple matter to write a wrapper
script to refer x11vnc to it.
A couple misc. notes:
If one wants to encrypt the VNC traffic with ssh it would go something
like this:
# ssh -L 5900:localhost:5900 someclient \
'XAUTHORITY=/tmp/... /usr/local/bin/x11vnc -display :0 -localhost -bg'
(/tmp/... means your known location. The above ignores userid issues,
but I hope gives the general idea.)
# vncviewer -encodings "tight hextile zlib" localhost:0
It turns out I have a couple krups javastations here at home that I use
as Xterminals. I'm currently playing around with a server-centric scheme
for the XAUTHORITY data. I basically just add a line like:
cat $XAUTHORITY > /var/tmp/xdmcookies/$DISPLAY
to /etc/X11/xdm/Xsetup (I use xdm on my Xterminals). Then an x11vnc
wrapper script can get the auth data in this central location based
simply on the desired client $DISPLAY.
I prefer your startx-like local cookie scheme for LTSP, but I mention
the above as another way to try to attack the X authority problem.
> If you do get a chance, pop into the #ltsp channel on irc.freenode.net,
> we can discuss this and more.
OK. I'm most interested in on how LTSP would be using the remote viewing
feature. I must admit I lazily admin the machine displays on my home
LAN using x11vnc so I don't have to leave my seat (and occasionally spy
on my daughters' X11 sessions, scary... :-)
Best,
Karl
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