NewBie to VNC on Solaris
Corné Beerse
cbeerse "at" lycos.nl
Thu Jun 3 11:53:01 2004
Ramesh S Pillai wrote:
> Hi
>
> how do i start the vnc server
> i tried Xvnc at the # prompt
> _______________________________________
> ./Xvnc
> _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
> _XSERVTransMakeAllCOTSServerListeners: server already running
>
> Fatal server error:
> Cannot establish any listening sockets - Make sure an X server isn't already
> running
This is because Xvnc defaults to display :0. Most likely, you have a graphical
console and hence :0 is occupied. Try `Xvnc :4` for a change. (`Xvnc :4 -query
localhost` should give a login window in a vnc session ;-).
On Solaris, the Xvnc binary needs write access to the /tmp/...X11...
subdirectory. I don't know which it is, you can find it in /tmp and it has X11
in its name.
> _______________________________________
> i tried ./vncserver at the # prompt
>
> # ./vncserver
> bash: ./vncserver: No such file or directory
This `vncserver` is a (perl) script and as with all scripts, it has the
interpreter on te first line. Open it in an editor and check the first line is
pointing to your `perl` binary. You can find your perl binary with `which perl`.
Update the path (and leave the #! in front of it!)
> # ls -l
> total 4310
> drwxr-xr-x 2 16207 16000 512 Mar 1 2003 classes
> -r--r--r-- 1 16207 16000 18000 May 11 2002 LICENCE.TXT
> -r--r--r-- 1 16207 16000 8829 Mar 1 2003 README
> -r-xr-xr-x 1 16207 16000 8192 Mar 1 2003 vncconnect
> -r--r--r-- 1 16207 16000 2223 Mar 1 2003 vncconnect.man
> -r-xr-xr-x 1 16207 16000 1991 Sep 20 2002 vncinstall
> -r-xr-xr-x 1 16207 16000 14620 Mar 1 2003 vncpasswd
> -r--r--r-- 1 16207 16000 1537 Aug 15 2002 vncpasswd.man
> -r-xr-xr-x 1 16207 16000 13825 Nov 3 2002 vncserver
> _______________________________________
>
> can any body help me out in installing the server, starting it up @ the #
> prompt and then automating it @ startup...
Better ways are in my attachment.
>
> regds
> RamP
> _______________________________________________
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Subject: Xvnc as a X-server (optionally replacing the console Xserver)
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X-Original-Date: Fri, 23 Jan 2004 10:52:57 +0100
Date: Fri, 23 Jan 2004 10:52:57 +0100
This is a description on how to use Xvnc as the Xserver. It is jet an other way
to create an always running vnc session on unix/linux. It is based on RedHat 9
but I think it can easy be moved to every unix that has a Xvnc binary.
My goal was to create a linux server that has a text console (for RedHat: as if
running in runlevel 3) but still has gdm available (actually running runlevel
5). Roughly, I just replaced the Xserver (XFree86 on linux) with Xvnc.
I first installed the vncserver packages from the distribution and start
`vncserver` at least once to have a vnc password file.
Then (sidestep) I installed
http://www.sourcecodecorner.com/articles/vnc/linux.asp. I don't expect it is
needed but for me it is the reason to run in runlevel 5 and not in runlevel 3.
The real work is in getting Xvnc used as an Xterminal that runs on the same
host. For GNOME (gdm) users: edit '/etc/X11/gdm/gdm.conf':
- disable VTAllocation (about line 104)
#VTAllocation=true
VTAllocation=false
- add server definitions (at the end, the double inserted lines are continuation
of the previous line, combine them.)
[server-ROOTVNC]
# vncsession, using vncpassword from root
name=ROOTVNC server
flexible=false
command=/usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait 120000
-rfbauth /root/.vnc/passwd
[server-FREEVNC]
# vncsession, using no vncpassword
name=FREEVNC server
flexible=false
command=/usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait 120000
-alwaysshared -dontdisconnect
- in the [servers] section, add and/or replace lines that indicate an Xserver:
# disable the X session on the console
#0=Standard
# use roots vncsession on :0
0=ROOTVNC
# use the free-access vncsession on :4
4=FREEVNC
Now restart gnome (or the entire machine) and see the console stays in its text
mode and there are 2 vnc sessions running: ONe at `vncviewer machine:0` that
uses the vncpassword of root and an other one at `vncviewer machine:4` that has
no vncpassword. All provide a login session.
To get the same setup with a KDE or XDM session, it is even simpler. Edit
'/etc/X11/xdm/Xservers': add the next lines (and comment out all others).
WRAPWARNING: each line is either comment or it starts with the same word as it
ends (:0 to :0 and :4 to :4).
# disable the X session on the console
#:0 local /usr/X11R6/bin/X
# vncsession :0, using vncpassword from root.
:0 ROOTVNC local /usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait
120000 -rfbauth /root/.vnc/passwd :0
# vncsession :4, no vncpassword.
:4 FREEVNC local /usr/bin/Xvnc -geometry 800x600 -depth 8 -rfbwait
120000 -alwaysshared -dontdisconnect :4
Now restart the display manager (or the machine) and...
Detail, if you want to keep the X11 server on the console (not have the :0 vnc
session): you might need to add '-vt7' to the 'command=/usr/X11R6/bin/X -vt7' line.
If I can find some time, I might put this description on a website some time. If
others want to do so, please do. If I come acros any other system (HP-UX might
be the first) I might mail an update. Be free to test it on any other system.
Most likely you only need to update the Xservers file according the above
/etc/X11/xdm/Xservers description.
CBee
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