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James Weatherall | 1 May 2005 13:06
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RE: how do I reset connection attempt failures?

Srinivas,

VNC Viewer will not prompt you for a password when the server is returning
the "too many tries" error.

The failed authentication count is reset the next time you successfully log
in from a host.

Regards,

Wez  <at>  RealVNC Ltd.

> -----Original Message-----
> From: vnc-list-admin <at> realvnc.com 
> [mailto:vnc-list-admin <at> realvnc.com] On Behalf Of Gayatri Kunda
> Sent: 30 April 2005 21:27
> To: vnc-list <at> realvnc.com
> Subject: how do I reset connection attempt failures?
> 
> hi:
> 
> I am attempting to connect to vncserver using a
> vncviewer running on my windows m/c and I have run out
> of allowed successful attempts.
> 
> How can I reset the count? The viewer is repeatedly
> giving me "VNC authentication failed - too many
> tries!" error, even though the password I give is
> correct.
>
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Scott C. Best | 1 May 2005 19:21
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Re: Timeout problems attempting to access my VNC server from behind a router

CC:

 	Heya. From your original description, it sounded to me as
if your friend was on the school network when she accessed your school
computer:

>> I set up TightVNC on my school computer (on the school network).
>> My roommate had no problems accessing my computer using her web 
>> browser as the viewer.

 	My understanding was that you only had a access problem
when you tried to access the computer from *home*, away from the
school network. This suggested to me that your school network is
behind a firewall/router that is (as it should be) blocking
connections to machines on the school LAN from the outside world.

 	Please let me know if my presumptions about where the 3 PC's
in question are mistaken. If my guesses are correct, and if your
school offers a VPN-service to remotely access the school LAN, you
should try that, then attempt VNC connections after you're VPN'd
with the LAN. Alternatively, you can try running an echoServer on
your home PC, and login to it from your school PC with EchoVNC. If
you can make that connection, you can then make EchoVNC-tunneled
VNC connections to your school PC.

 	Hope that helps!

-Scott

> If the problem is my school computer, how come my friend was able to
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Jack Sullivan | 1 May 2005 19:40
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Getting started with VNC 4 Personal edition

My applixcation is controlling a Micron running W98 from a Dell Latitude running W2K. Both machines are
conjnected to a Linksys router and both port lights are on, so the phsical & electronic connectiion looks
OK.. I've installed VNC Server (Service) and have entered by IP address. The VNC icon in my tool tray now
says 'VNC Server (Service):192.168.N.NNN (etc)'. The tutorial says I should be be able to connect at this
point but I'm not having any luck. Could someone please get me started? Any help would be greatly appreciated.

Jack

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Wayne Cousineau | 1 May 2005 23:00
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Connect to Server but no display on Viewer

I have a realVNC 4.1.1 viewer set up on a PC which runs WindowsXP.

I have a VNC server for MacOS x set up on a remote Mac.

With the server running, when I launch the viewer I see a momentary flash on 
the viewer screen where it looks like it is trying to show me the server 
machine however no display of the server machine ever actually comes up on 
the viewer machine.

Server machine shows viewer machine as connected.

Any thoughts would be much appreciated.

Wayne
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James Weatherall | 2 May 2005 12:54
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RE: Getting started with VNC 4 Personal edition

Jack,

Have you configurated port forwarding on the router to which the server is
attached, as described in the documentation?  Without this, you will not be
able to access your server from outside your Local Area Network.

Please log a support request at http://www.realvnc.com/support.html if you
require further assistance.

Regards,

Wez  <at>  RealVNC Ltd.

> -----Original Message-----
> From: vnc-list-admin <at> realvnc.com 
> [mailto:vnc-list-admin <at> realvnc.com] On Behalf Of Jack Sullivan
> Sent: 01 May 2005 18:40
> To: vnc-list <at> realvnc.com
> Subject: Getting started with VNC 4 Personal edition
> 
> My applixcation is controlling a Micron running W98 from a 
> Dell Latitude running W2K. Both machines are conjnected to a 
> Linksys router and both port lights are on, so the phsical & 
> electronic connectiion looks OK.. I've installed VNC Server 
> (Service) and have entered by IP address. The VNC icon in my 
> tool tray now says 'VNC Server (Service):192.168.N.NNN 
> (etc)'. The tutorial says I should be be able to connect at 
> this point but I'm not having any luck. Could someone please 
> get me started? Any help would be greatly appreciated.
>
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Angelo Sarto | 2 May 2005 13:12
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Re: WinCE - VNC Server?

You can try:

http://www.pocketvnc.com/pocketVNC.aspx
or
http://sourceforge.net/projects/wincevncsvr/

--Can't vouch for either though just a suggestion.

--ANgelo

On 4/30/05, Chris Branas <chris <at> branas.org> wrote:
> Hello,
> 
> I am wondering if anyone knows of a way to run VNC server on a CE device?
> Perhaps a listening Viewer? I see that people run the client on CE but is
> that just the Java version? Any help is appreciated. I currently run
> several Enterprise versions of VNC on Linux and Windows.
> 
> Thanks again,
> 
> Chris
> _______________________________________________
> VNC-List mailing list
> VNC-List <at> realvnc.com
> To remove yourself from the list visit:
> http://www.realvnc.com/mailman/listinfo/vnc-list
_______________________________________________
VNC-List mailing list
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Erik Soderquist | 2 May 2005 21:38

RE: VNC Security

if the VNC data is unencrypted, *any* password you type during the
session (domain admin to update drivers for example) is also sent
unencrypted. and the attacker would not likely be some random hacker,
but rather someone who is targeting the company already. it isn't that
difficult to connect sniffing hardware to say the T1 line to look for
weak points. after a few days surveillance, everything unencrypted is
then captured and analyzed for login/password information. it isn't so
much "low hanging fruit" as it is simply a chink in the armor that can
be exploited. the fewer chinks the better.

as to odds, here is a more common example of overblown paranoia
surrounding a real possibility (the last time I checked this was a while
ago, it may have shifted some):

due to the technological differences, it is far more likely that someone
will steal your credit card number by eavesdropping on an order placed
by phone than by someone sniffing it from an unencrypted internet
transaction.

please note this only examines an actual sniffing attack. phishing and
spyware are not examined in this.

-----Original Message-----
From: vnc-list-admin <at> realvnc.com [mailto:vnc-list-admin <at> realvnc.com] On
Behalf Of Steve Bostedor
Sent: Tuesday, April 19, 2005 20:57
To: Alexander.Bolante <at> gmail.com
Cc: security-basics <at> securityfocus.com; vnc-list <at> realvnc.com
Subject: RE: VNC Security
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Erik Soderquist | 2 May 2005 21:58

RE: VNC Security

alternative method: you have listening viewer available to the internet
when helping someone, someone installs VNC (in 3.3.7 if you don't put a
password in, it refuses incoming connections) and adds you as a client.
no VNC password is even needed at that point, and the server is never
exposed to the internet if it is behind a NAT router. (also saves the
port forwarding troubles) 

-----Original Message-----
From: vnc-list-admin <at> realvnc.com [mailto:vnc-list-admin <at> realvnc.com] On
Behalf Of Andy Bruce - softwareAB
Sent: Monday, April 25, 2005 19:47
To: Mike Miller
Cc: Steve Bostedor; security-basics <at> securityfocus.com; VNC List
Subject: Re: VNC Security

First--I believe we're talking apples and oranges. VNC is not an 
appropriate solution for a true corporate network unless a firewall and 
a secure link is available (and even then is dodgy). My scenario is
this:

  a. Random user in cyberspace has a problem.

  b. User installs VNC under direction of tech support:
      i. strong password
      ii. not installed as service
      iii. temporary port forwarding only

  c. User allows remote person to login, generally for 20-30 mins.

  d. User stops VNC server process and disables port forwarding
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Sean Kamath | 3 May 2005 00:09
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Re: VNC connection lost when initiating telnet session quits- solution!

The Borne shell doesn't do job control.  No "nohup" command will
insulate against SIGTERM, it only protects against SIGHUP (hence the
name).  I'm completely confused why the sh would send a TERM to the
processess.

It could be that the processes are sending a request to go in the
background (SIGSTOP) and the sh is terminating them instead.  I'll see
if I can duplicate the behaviour and see what's causing this problem,
but it sounds like you have a workaround.

Sean

[In a message on Fri, 29 Apr 2005 18:29:03 EDT,
  Dr Robert Young wrote:]
>Launching the vncserver from the csh seems to work, and the apps appear 
>to remain alive after the telnet session is exited.
>
># csh
>ultra10# /usr/local/bin/vncserver
>
>New 'ultra10:1 (root)' desktop is ultra10:1
>
>Starting applications specified in //.vnc/xstartup
>Log file is //.vnc/ultra10:1.log
>
>ultra10#
>
>When the telnet connection is now broken, the vncserver and its apps 
>continue to operate normally.  Apparently the 'C' shell is insulating 
>the programs, while the /sbin/sh does not.
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Dr Robert Young | 3 May 2005 00:17

Re: VNC connection lost when initiating telnet session quits- solution!

Good luck...

Whatever the reason, the csh does seem to solve the problem for me at 
the present time.

On May 2, 2005, at 6:09 PM, Sean Kamath wrote:

>
> The Borne shell doesn't do job control.  No "nohup" command will
> insulate against SIGTERM, it only protects against SIGHUP (hence the
> name).  I'm completely confused why the sh would send a TERM to the
> processess.
>
> It could be that the processes are sending a request to go in the
> background (SIGSTOP) and the sh is terminating them instead.  I'll see
> if I can duplicate the behaviour and see what's causing this problem,
> but it sounds like you have a workaround.
>
> Sean
>

________________________________________________________

Dr. Robert Young
ALI Database Consultants
1151 Williams Dr
Aiken SC 29803
USA

WWW: http://www.aliconsultants.com
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Gmane