Scott Best | 1 Dec 05:48 2004

Re: VNC over Satellite Connections

Travis:

	Heya. My understanding is that satellite ISP's understand the
limitations of the speed of light with regard to IP packet timeouts,
and so their modems "cheat" with the TCP "ACK" packets so that
the timeout problems are avoided.

	Which is all to say...VNC should work over a satellite TCP/IP
connection, though obviously it won't be very responsive. Have you
tried it? Can you confirm it works?

cheers,
Scott

> We are trying to figure out a solution for a satellite connection.  I
> was wondering if anyone knew of any settings that would help get vnc
> working over this connection.  The current ping times are at 1200ms.
> I'm getting worried that we won't be able to do anything useful.

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(Continue reading)

Vamsi Krishna | 1 Dec 07:26 2004
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Tightvnc 1.2.9 is giving problems on my Itanium!!!

Hi,
 
I run into some kind of weird problems when trying to use
vnc_unixsrc (1.2.9) on Itanimum machine(64 bit).
 
I checked out the sources from TightVNC cvs server with the tag VERSION_1_2_9.
(I am not too sure if this is the right tag to use, because i also see VERSION_1_2_9pre1.
Please direct me to the correct tag !!!)
 
I followed the README and was able to compile Xvnc. 
 
localhost # Xvnc :1
 
Step 1: mesages on the console when i run the server,
***************************
03/11/04 00:32:11 Xvnc version 3.3.tight1.2.9
03/11/04 00:32:11 Copyright (C) 1999 AT&T Laboratories Cambridge.
03/11/04 00:32:11 Copyright (C) 2000-2002 Constantin Kaplinsky.
03/11/04 00:32:11 All Rights Reserved.
03/11/04 00:32:11 See http://www.uk.research.att.com/vnc for information on VNC
03/11/04 00:32:11 See http://www.tightvnc.com for TightVNC-specific information
03/11/04 00:32:11 Desktop name 'x11' (blr-dt-r24d:1)
03/11/04 00:32:11 Protocol version supported 3.3
03/11/04 00:32:11 Listening for VNC connections on TCP port 5901
Font directory '/usr/X11R6/lib/X11/fonts/100dpi/' not found - ignoring
Xvnc(15679): unaligned access to 0x600000000019cd7c, ip=0x400000000022bcb0
Xvnc(15679): unaligned access to 0x600000000019cd84, ip=0x400000000022bcb0
Xvnc(15679): unaligned access to 0x600000000019cd8c, ip=0x400000000022bcb0
Xvnc(15679): unaligned access to 0x600000000019cd94, ip=0x400000000022bcb0

***************************
 
Step 2: When i connect from some viewer,
****************************
03/11/04 00:34:16 Got connection from client 192.168.145.12
03/11/04 00:34:16 Protocol version 3.3
03/11/04 00:34:16 Pixel format for client 192.168.145.12
03/11/04 00:34:16   8 bpp, depth 8
03/11/04 00:34:16   true colour: max r 7 g 7 b 3, shift r 0 g 3 b 6
03/11/04 00:34:16   no translation needed
03/11/04 00:34:16 rfbProcessClientNormalMessage: ignoring unknown encoding 784
03/11/04 00:34:16 rfbProcessClientNormalMessage: ignoring unknown encoding 268435461
03/11/04 00:34:16 rfbProcessClientNormalMessage: ignoring unknown encoding 83886852
03/11/04 00:34:16 rfbProcessClientNormalMessage: ignoring unknown encoding 67108866
03/11/04 00:34:16 rfbProcessClientNormalMessage: ignoring unknown encoding 33555201
03/11/04 00:34:16 rfbProcessClientNormalMessage: ignoring unknown encoding 16777216
****************************
Segmentation fault
Some other times, it gives segmentation faults as soon as I start Xvnc.
Can somebody in the list help me fix this issue.
Let me know if some more information would be helpful.
 
This is the gdb output:
 
Program received signal SIGSEGV, Segmentation fault.
0x2000000000265e00 in _int_malloc () from /lib/tls/libc.so.6.1
(gdb) where
#0  0x2000000000265e00 in _int_malloc () from /lib/tls/libc.so.6.1
#1  0x2000000000268f40 in malloc () from /lib/tls/libc.so.6.1
#2  0x40000000000a11f0 in Xalloc ()
#3  0x40000000002864f0 in miCreateGCOps ()
#4  0x40000000001845d0 in cfbValidateGC ()
#5  0x4000000000279150 in miBSCheapValidateGC ()
#6  0x400000000013afb0 in rfbValidateGC ()
#7  0x4000000000149130 in rfbSpriteValidateGC ()
#8  0x4000000000078690 in ValidateGC ()
#9  0x4000000000146600 in rfbDCSaveUnderCursor ()
#10 0x4000000000151200 in rfbSpriteRestoreCursor ()
#11 0x4000000000154890 in rfbSendFramebufferUpdate ()
#12 0x40000000001540a0 in rfbProcessClientNormalMessage ()
#13 0x4000000000152290 in rfbProcessClientMessage ()
#14 0x40000000001369c0 in rfbCheckFds ()
#15 0x4000000000134e40 in ProcessInputEvents ()
#16 0x40000000000542b0 in Dispatch ()
#17 0x4000000000027eb0 in main ()
thanks
kvs
Frank Martin | 1 Dec 15:51 2004
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VNC-Tight File transfer

Does anyone know if you can do a file transfer from one machine to another
when you are using VNC-Tight?

Thanks,
Frank

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John Aldrich | 1 Dec 16:14 2004

RE: VNC-Tight File transfer

I believe that is possible with the latest dev releases, but not with the
full release (1.2.9)

-----Original Message-----
From: Frank Martin [mailto:fmartin <at> qwest.net]
Sent: Wednesday, December 01, 2004 9:52 AM
To: vnc-tight-list <at> lists.sourceforge.net
Subject: VNC-Tight File transfer

Does anyone know if you can do a file transfer from one machine to another
when you are using VNC-Tight?

Thanks,
Frank

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Travis Stevenson | 1 Dec 16:21 2004

Re: VNC over Satellite Connections


On Tue, 2004-11-30 at 20:48 -0800, Scott Best wrote:
> 	Which is all to say...VNC should work over a satellite TCP/IP
> connection, though obviously it won't be very responsive. Have you
> tried it? Can you confirm it works?

We were told by our provider that vnc should work but it would be slow.
I've tried it and it and resets in the middle of the screen refresh.
I'm going to play with the screen polling to see if it helps.
Coincidentally our ISP was also having router problems at that same time
so when they get it fixed I will try it again.

~Travis
Frank Bax | 1 Dec 16:21 2004
Picon

Re: VNC-Tight File transfer

At 09:51 AM 12/1/04, Frank Martin wrote:
>Does anyone know if you can do a file transfer from one machine to another
>when you are using VNC-Tight?

Does anyone bother to read the website or list archives before asking this 
question?
This feature is available in current development version - available on 
download page.

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Elmer Duncan | 1 Dec 22:41 2004

RE: VNC over Satellite Connections

Remember...any signal going up has to come back down. And the response has
to make the same trip.  And then you have to factor in normal Internet lag
times.

I've used Satellite/Ethernet and the responses times were very slow. Nothing
you can do about it.  

It's great for streaming and downloading though. 

It's better than nothing.

-----Original Message-----
From: vnc-tight-list-admin <at> lists.sourceforge.net
[mailto:vnc-tight-list-admin <at> lists.sourceforge.net] On Behalf Of Bret Hughes
Sent: Tuesday, November 30, 2004 3:03 PM
To: Tight VNC List
Subject: Re: VNC over Satellite Connections

I was thinking ping plus reply  (up + down * 2) since for anything
useful to occur a packet has to come back. I believe ping actually
reports roundtrip times anyway.

And yes it may be only 45K miles added for each packet but only if you
are on the equator.  Depending on where in the clarke belt the satellite
is you also have an azimuth component that adds to the distance as well
as the elevation so I feel justified in estimating 100K miles added to
the normal ping and reply.

Bret 

On Tue, 2004-11-30 at 12:49, Frank Bax wrote:
> Satellite in geostationary orbit is about 36K km above earth's 
> surface.  That makes round trip (72K / 1.6) = 45K miles, not 100K miles.
> 
> 
> At 12:59 PM 11/30/04, Bret Hughes wrote:
> 
> >Well, you basically have added 100K miles to the round trip network
> >distance and if everything were perfect that adds over 0.5 seconds.
> >Sounds like there is even more processing delay added somewhere.
> >
> >I would be interested to hear if there is any thing that can be done too
> >since my 67 year old mother moved to the woods and got here direcpc
> >connection last week.  I have not even had a chance to try vnc since I
> >figured the delay would be REALLY painful.
> >
> >Bret
> >
> >On Tue, 2004-11-30 at 11:24, Travis Stevenson wrote:
> > > We are trying to figure out a solution for a satellite connection.  I
> > > was wondering if anyone knew of any settings that would help get vnc
> > > working over this connection.  The current ping times are at 1200ms.
> > > I'm getting worried that we won't be able to do anything useful.
> > >
> > > Thanks,
> > >
> > >    ~Travis
> 
> 
> 
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now. 
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Carlos Yañez | 2 Dec 19:35 2004
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HP-UX and VNC

Hi,
This is my first message to this list and I start with a question ;-).

I've installed the HP-UX port of Tight VNC available at
ftp://ftp.kinetworks.com/tightvnc. My machine is a K900 PA-RISC with
HP-UX 11.00.
I could install the package without any trouble. But when I started,
the following message appeared:
# ./startvnc 0
./startvnc[17]: cd: The	specified	directory	is	not	valid.
# ./vncserver status
VNC RUNNING : 26220

I tried to establish a connection with a TightVNC WinXP Client.
Although I put both display 0 and port 5900, there was no succes.

What can I do?
Regards,
Carlos Yáñez S.

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sanadroug hajian | 3 Dec 00:07 2004
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(no subject)

does anyone know if the services you pay for work on a satalite internet 
connection?  I have sataliite as we live on a farm, and I cannot get the 
connection to work. I cannot even open the viewer.  I don't want to pay to 
purchase the other software out there if that also will not work with my 
satalite connection.

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rogerlewis | 4 Dec 03:06 2004

VNC configuration through firewalls

Hi,

I am seeking your expert advise to perform what to you may seem a simple
process. What I would like to do, is be able to use VNC from a PC behind a
firewall to connect via the Internet securely to PCs behind another firewall.
Could you please help me with the necessary steps/procedure on accomplishing
this task.

Many thanks,

Roger.

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Gmane