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Davide Cerbo | 1 Aug 2004 14:37
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VNC over INTERNET and LAN

How can I connect to a PC in a LAN over Internet?
Example:
If the ip of the server of the LAN is for example: 89.123.256.44
and the ip of the computer with VNC server is for example: 168.123.0.20
How can I do?

Thanks.
Davide
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chas (kysdaddy | 1 Aug 2004 15:01

RE: VNC over INTERNET and LAN

 I am having this same issue, the only difference is that the machine that I
am trying to reach is behind a win 2003 sbs server. I'm assuming that it is
an addressing or a port forwarding issue but can't find the fix/answer.

Davide Cerbo davidecerbo "at" virgilio.it 
Sun Aug 1 13:43:01 2004 

Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] 

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How can I connect to a PC in a LAN over Internet?
Example:
If the ip of the server of the LAN is for example: 89.123.256.44
and the ip of the computer with VNC server is for example: 168.123.0.20
How can I do?

Thanks.
Davide
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Alan Watchorn | 1 Aug 2004 18:43

Re: remote printing

No, Remote Desktop is not the same as Remote Assistance.  I have had the
same experience as you with Remote Assistance.  It worked for me in a test
environment but when I tried to use it to support one of my users I had
less than a perfect experience.  Remote Assistance is available in both XP
Pro and XP Home.

I use Remote Desktop almost every day on an XP Pro system and it works
well for me (I use VNC on non-XP systems and it works well too but does
not support Remote Printing).  It is available only in XP Pro.

Alan.

Alan Watchorn
Eshelman Appraisals, Inc.
alan <at> eshelmanappraisals.com
Phone (760) 692-4302
Fax (760) 692-4303

Kenton White said:
> In your message dated Sat, 31 Jul 2004 10:08:24 -0700 (PDT), Alan said...
>
>> Are you using Windows XP?  If so there is a built-in feature (you don't
>> even have to download anything!) called Remote Desktop (RDP) which does
>> the same as VNC but supports remote printing, I think.
>
> Is that the same as Remote Assistance? If so, good luck! I have never been
> able to get Remote Assistance to work - that's why I moved to VNC! I got
> VNC to work first time out of the box. Also, I *think* that Remote
> Assistance is available only with Windows XP Pro.
>
(Continue reading)

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Brad Melendy | 1 Aug 2004 18:47
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Re: VNC over INTERNET and LAN

You should be able to do this by forwarding tcp port 5900 on the
proxy/firewall to the internally routed PC running VNC Server.  Then
requests by the VNC Viewer with an external IP made to the IP of the
proxy/firewall will be forwarded inside and you will connect to the server.
It requires some knowledge of configuring firewalls or proxy servers for
port forwarding.

...Brad

----- Original Message -----
From: "chas (kysdaddy)" <kysdaddy <at> putermail.net>
To: <vnc-list <at> realvnc.com>
Sent: Sunday, August 01, 2004 6:01 AM
Subject: RE: VNC over INTERNET and LAN

> I am having this same issue, the only difference is that the machine that
I
> am trying to reach is behind a win 2003 sbs server. I'm assuming that it
is
> an addressing or a port forwarding issue but can't find the fix/answer.
>
>
> Davide Cerbo davidecerbo "at" virgilio.it
> Sun Aug 1 13:43:01 2004
>
> Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
>
> --------------------------------------------------------------------------
--
> ----
(Continue reading)

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Alan Watchorn | 1 Aug 2004 19:09

RE: VNC over INTERNET and LAN

I'm not sure that I can answer your specific question but here is how IP
adressing works.  There are two addressing modes; static and dynamic.

In static mode you are assigned an IP address and it is unique so anything
sent to that IP address comes to your computer.  It is your address and
you always get the same address (until you relinquish it and then it may
be assigned to someone else).

Dynamic address depends on a protocol called DHCP (Dynamic Host
Configuration Protocol) and you are dynamically assigned an address from a
pool of available addresses ON YOUR NETWORK.  The addresses are USUALY 
assigned from the pool (Internet Standard) of private addresses, starting
with 192 or 168 as the first three digits of the address.  (ISPs usually
use their own IP addresses).  DHCP often assigns the same IP address to
the same system (I can explain why that happens but it is not really
relevant here) with the result that a lot of times things work for a while
and then stop working.

It sounds like maybe one of the computers is using a local address which
is not 'visible' to the other computer (Local IP addresses are not passed
over the Internet).  The solution is to have your ISP assign static
addresses to each computer and use them.

Sorry if this answer is long-winded and didactic.  I will be glad to share
my networking knowledge if it helps and you contact me directly.

Alan Watchorn
Eshelman Appraisals, Inc.
alan <at> eshelmanappraisals.com
Phone (760) 692-4302
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Steven D. Clark | 1 Aug 2004 19:44

Re: VNC over INTERNET and LAN

Another alternative, which I use, is to assign your local IP addresses
yourself and use port forwarding.

Step 1.  Assign static IP addresses that are outside the range your DHCP
server uses, but are on the same subnet.
Example for a 192.168.1.0 subnet:
If your DHCP server has a pool of 50 addresses starting 192.168.1.100
You would assign IP addresses 192.168.1.5n to the machines on your LAN.

Step 2.  Educate yourself on the port forwarding capabilities of your
routing.  This may also be called a static NAT entry depending on your
router.  Set up a static NAT on your router to forward port 5900 to the
static IP of the machine running VNC Server.

Hope this helps,

Steven

----- Original Message ----- 
From: "Alan Watchorn" <alan <at> eshelmanappraisals.com>
To: "chas (kysdaddy)" <kysdaddy <at> putermail.net>; <vnc-list <at> realvnc.com>
Sent: Sunday, August 01, 2004 11:09 AM
Subject: RE: VNC over INTERNET and LAN

> I'm not sure that I can answer your specific question but here is how IP
> adressing works.  There are two addressing modes; static and dynamic.
>
> In static mode you are assigned an IP address and it is unique so anything
> sent to that IP address comes to your computer.  It is your address and
> you always get the same address (until you relinquish it and then it may
(Continue reading)

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chas (kysdaddy | 1 Aug 2004 20:55

RE: VNC over INTERNET and LAN

 Thanx for all the help, the answer for me was to get off my lazy rear end
and figure out how to set up a VPN.
Chas

> -----Original Message-----
> From: Steven D. Clark [mailto:sdclark <at> cnrgroup.com] 
> Sent: Sunday, August 01, 2004 1:45 PM
> To: alan <at> eshelmanappraisals.com; chas (kysdaddy); vnc-list <at> realvnc.com
> Subject: Re: VNC over INTERNET and LAN
> 
> Another alternative, which I use, is to assign your local IP 
> addresses yourself and use port forwarding.
> 
> Step 1.  Assign static IP addresses that are outside the 
> range your DHCP server uses, but are on the same subnet.
> Example for a 192.168.1.0 subnet:
> If your DHCP server has a pool of 50 addresses starting 
> 192.168.1.100 You would assign IP addresses 192.168.1.5n to 
> the machines on your LAN.
> 
> Step 2.  Educate yourself on the port forwarding capabilities 
> of your routing.  This may also be called a static NAT entry 
> depending on your router.  Set up a static NAT on your router 
> to forward port 5900 to the static IP of the machine running 
> VNC Server.
> 
> Hope this helps,
> 
> Steven
>
(Continue reading)

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Chong, Wai Keong (Malaysia | 2 Aug 2004 03:12
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Sending ctrl-alt-del to a WinXP box

Dear Sir,

I have some case similar. Do you have any idea why I could send Ctrl-Alt-Del
to a Win2kServer machine after rebooted in the first Logon Screen ?? I can
send Ctrl-Alt-Del to it after the First Logon is done. Thanks

Best regards,

WK Chong

-----Original Message-----
From: vnc-list-admin <at> realvnc.com [mailto:vnc-list-admin <at> realvnc.com] On
Behalf Of William Hooper
Sent: Friday, 30 July, 2004 06:41
To: vnc-list <at> realvnc.com
Subject: Re: Sending cntrl-alt-del to a WinXP box

leusink-bisgaard said:
[snip]
> Can somebody tell me how on earth I send control-alt-delete to my XP
> box?

http://www.realvnc.com/pipermail/vnc-list/2004-July/046173.html

--

-- 
William Hooper
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Craig Cummings | 2 Aug 2004 05:03
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VNC service must be restarted after every reboot

Every time a particular XP machine is rebooted, the VNC Server service must
be restarted before I can connect again -- even though its Status is
Started and the Start up Type shows Automatic.

The machine in question is running RealVNC version 3.3.6 on Windows XP Home
SP1 with the latest updates installed, and Fast User Switching is disabled.
The VNC Server service is logged in under the Local System account.

I have only seen two other threads that mention this issue: How does one
keep vnc server running as a service all the time? and can't connect to
win2K server until service is stop/started.  However, no one answered the
former and the later seemed to digress into a discussion about NAT and the
Java Server.  Has anyone else experienced this problem, or more importantly,
discovered a solution.

For various reasons, Id like to avoid upgrading the server if possible.
This version use to work on this machine, so it seems logical that I should
be able to continue using this version.

Any suggestions will be greatly appreciated.

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.732 / Virus Database: 486 - Release Date: 7/29/2004
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Jonathan August | 2 Aug 2004 09:01
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Help on allowing others to connect to me

Hello fellow VNC Users!

This is my first time posting as I have just recently downloaded the
program.

My question is as follows:

Using my computer I can connect to my other friend's computer as she has
VNC. However, if she tries to connect to me, she is not able. I know that I
am behind a firewall, but I am telling her to use "IP":5900 as the port. She
still cannot connect to me.

Is there anyway to fix this?

Also, when I roll my mouse over my VNC tray icon, it shows my IP. However,
when I received my confirmation email from VNC Mailing List it showed a
different IP (I also used this one to try and have my friend connect and it
failed). Is there a reason for this?

Thank you all!

Jonathan
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