[K12OSN] Re: VNC grey screen

[Tom Wolfe]

Hi William & others:

Thank you for point (2) and for indicating I should check this first!!!
That solved it in about 10 seconds from reading your email. Now I can VNC
to my heart's content.

William you're saving me a ton of head beating lately, thanks a bunch,

Tom Wolfe


On Wed, 16 May 2007, William Fragakis wrote:

> I had similar trouble on several Ver. 6 installs. Hope this helps you
> from banging your head against the wall.
>
> Checklist:
> 1) make sure that your firewall opens the proper ports starting from
> 5900, say, 5900:10
>
> you can add this line to /etc/sysconfig/iptables
>
> -A RH-Firewall-1-INPUT -p tcp -m tcp -m state --dport 5900:5910 --state
> NEW,ESTABLISHED -j ACCEPT
>
> and restart iptables
>
> 2) make sure this is the first line in /etc/hosts (actually, check this
> first)
>
> 127.0.0.1       localhost.localdomain   localhost
>
> for some reason, a couple of my servers didn't have the complete 127
> address on that line, it was truncated.
>
> 3) remember that you are using vncts, not vncserver. ie don't start
> vncserver under System -> Administration -> Services, you don't need it.
> On ver. 6, it's hidden in the "On Demand Services" tab.
>
> regards,
> William
>
>
>
> On Wed, 2007-05-16 at 12:00 -0400, k12osn-request at redhat.com wrote:
> >
> > Message: 13
> > Date: Tue, 15 May 2007 21:32:46 -0400 (EDT)
> > From: Tom Wolfe <twolfe at sawback.com>
> > Subject: [K12OSN] VNC grey screen
> > To: k12osn at redhat.com
> > Message-ID: <Pine.BSF.4.58.0705152129320.16270 at dyyme.pair.com>
> > Content-Type: TEXT/PLAIN; charset=US-ASCII
> >
> > Hi folks, I tried recently to connect to my k12ltsp 6.0 server via
> > VNC. I
> > get a grey screen, e.g. "vncviewer servername", "vncviewer
> > servername:1",
> > etc.. Teachertool, however, works as one would expect
> > (monitoring/controlling is no problem). Any suggestions?
> >
> > Regards,
> > Tom Wolfe
>
>