[TriLUG] Re: VNC questions -

[Janyne Kizer]

Does anyone have suggestions on this?  I must have a real mental block
on this because I just cannot seem to get VNC to start automatically
(except through rc.local which is really messy VNC doesn't seem to be
closing out gracefully and as a result I get a new display number on
each reboot).  

Also, from reading the /etc/sysconfig/vncservers file I was under the
impression that I could have display 1 be me, 2 be someone on the
helpdesk and so on.  Does this sound right

Thanks a bunch.

Janyne Kizer wrote:
> 
> iptables -L indicates that the firewall is not the problem.  VNC is not
> running on the server (at least ps -edf | grep vnc does not seem to find
> it)
> 
> Results from iptables -L
> 
> ACCEPT     tcp  --  anywhere             anywhere           tcp
> spt:vnc-640x480x8
> ACCEPT     tcp  --  anywhere             anywhere           tcp
> spt:vnc-800x600x8
> ACCEPT     tcp  --  anywhere             anywhere           tcp
> spt:vnc-800x600x16
> 
> The problem seems to be that when I issue Xvnc I get this error:
> 
> _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed
> _XSERVTransMakeAllCOTSServerListeners: server already running
> 
> Fatal server error:
> Cannot establish any listening sockets - Make sure an X server isn't
> already running
> 
> But when I do vncserver (to run the script in /etc/rc.d/init.d/) it
> starts fine -- kinda.  That brings up the second problem that I've been
> having, the pooplets being left behind (mentioned in my original post).
> 
> Warning: <servername>:1 is taken because of /tmp/.X11-unix/X1
> Remove this file if there is no X server linus.ces.ncsu.edu:1
> 
> Warning: <servername>:2 is taken because of /tmp/.X11-unix/X2
> Remove this file if there is no X server linus.ces.ncsu.edu:2
> 
> I really thought that there was a "better" way to do this under RH 7.2
> using the /etc/sysconfig/vncservers and so on...
> 
> H Brett Bolen wrote:
> >
> > Janyne Kizer wrote:
> >
> > > OK, I did this and "iptables -L" indicates that it is working fine,
> > > however it does not appear the the VNC server is running.
> > >
> > > /etc/services
> > > vnc-640x480x8   5950/tcp                        # vnc server IP
> > > vnc-800x600x8   5951/tcp                        # vnc server IP
> > > vnc-800x600x16  5952/tcp                        # vnc server IP
> > >
> > > /etc/xinetd.d/vnc-640x480x8
> > >
> > > # default: off
> > > # description: The vnc server allows connection via the vnc protocol
> > > #
> > > #       server                  = /usr/bin/Xvnc
> > >
> > > service vnc-640x480x8
> > > {
> > >         disable                 = no
> > >         socket_type             = stream
> > >         protocol                = tcp
> > >         wait                    = no
> > >         user                    = nobody
> > >         server                  = /usr/bin/Xvnc
> > >         server_args             = -inetd -broadcast -once -geometry
> > > 640x480 -depth 8
> > >         log_on_success          += USERID
> > >         log_on_failure          += USERID
> > > }
> > >
> > > Janyne Kizer wrote:
> > >
> > >>Gotcha.
> > >>
> > >>So I need to add a line like the following to the firewall
> > >>
> > >>iptables -A INPUT -p tcp --sport 5950 -j ACCEPT
> >
> > see if it works from your side of the firewall ( take iptables out of
> > equation).  if it works, then add firewall support.
> >
> > I boot at runlevel 3, so I don't use xdm ( kdm, gdm, etc).  I had to
> > remove -brodcast from the server_args line.  I also removed -once,
> > but I don't recall why.
> >
> > b\375
> >
> > _______________________________________________
> > TriLUG mailing list
> > http://www.trilug.org/mailman/listinfo/trilug
> 
> --
> 
> Janyne Kizer
> CNE-3, CNE-4, CNE-5
> Systems Programmer Administrator I
> NC State University, College of Agriculture & Life Sciences
> Extension and Administrative Technology Services
> Phone: (919) 515-3609
> _______________________________________________
> TriLUG mailing list
> http://www.trilug.org/mailman/listinfo/trilug

-- 

Janyne Kizer
CNE-3, CNE-4, CNE-5
Systems Programmer Administrator I
NC State University, College of Agriculture & Life Sciences
Extension and Administrative Technology Services
Phone: (919) 515-3609