FW: SelectObject to CompatbleDC failed
angelosarto "at" gmail.com
Mon Oct 4 15:36:00 2004
Ahhh, I see what you are trying to acomplish.
I would try this
PC1 (vncviewer) ---->SRV1(VNC SERVER)
this works ok, correct?
SRV1 (vncviewer) --->PC2(VNC Server)
unfortunatley in this situation you may experience some issues due to
update delays on both clients.
the situation you are trying to create (pc1--->pc2 direct) would only
be possible in two scenarios (that I know of)
1. You have access to at least one router. If you can configure
either router then you can make this work.
2. using a tunneling protocol.
Set up a SSH server on SRV1 that allows access to the inside LAN
Install an SSH clicent on PC1
on pc1 initiate an SSH connection with the server
on pc1 open a connection to pc2.
what you may be trying to accomplish is actually #2. But what you are
looking for is SSH or VPN or someother form of transparent tunneling.
(I guess you could also try RAS on the server but I usually dont
If you are interested insetting up SSH try searching this/other vnc
If you need help post back and I will help you if I can.
On Mon, 04 Oct 2004 09:56:33 +0400, Cesar Dela Paz
<cesar.delapaz "at" europa.ae> wrote:
> Thanks for the information about port 5500. I guess that's the piece
> that I am looking to make it work.
> As for the configuration of the router, I do not have access to it. It
> is an ISP provided router. I do not know how to do it. I am using a
> Lucent cellPipe under PPPoA. I can see the menu and possibly tinker with
> the router but I do not have a manual of it. My guess is it is possible
> but I just plainly don't know how to configure it.
> So that makes No-IP not yet possible for me because until I make the IP
> forwarding for public and private IP with my DSL DSL router, VNC will
> still not work. Is that right?
> - Cesar
> -----Original Message-----
> From: Angelo Sarto [mailto:angelosarto "at" gmail.com]
> Sent: Monday, October 04, 2004 4:44 AM
> To: Cesar Dela Paz
> Cc: vnc-list "at" realvnc.com
> Subject: Re: FW: SelectObject to CompatbleDC failed
> listening vnc viewer listens on port 5500.
> so you will need that forwarded to work.
> Additionally, if you have access to configure the router then you could
> just forward 5900 on the router to the xp machine (pc2)
> if you are worried about dynamic IP then sign up for a free account at
> this will give you a domain name to map to your dynamic IP. the client
> can run a service (called DUC) that will update the dns at an interval
> (that you set up).
> On Sun, 03 Oct 2004 16:33:43 +0400, Cesar Dela Paz
> <cesar.delapaz "at" europa.ae> wrote:
> > Just an update on the issue I posted here. Looks like I was able to
> > overcome the problem below by just changing the sequence of how I use
> > Remote Desktop and VNC. I am using a Windows 2003 Server with VNC
> > Server and an XP Pro with VNC Viewer. I was getting the error right
> > after and even while I am using RD on Win2003. SO I decided to
> > experiment and reboot Win2003 and then connecting my XP using VNC
> > without running RD yet. It worked. Then I run RD and connect from XP
> > to Win2003. They are now running simultaneuosly. I experimented
> > further by closing VNC and connecting again even while RD is still
> running. It was also a success.
> > I suspect (for verification of course) that there is something in the
> > initialization of RD that causes the problem with VNC. So if you want
> > to run RD along with VNC make sure you run VNC first, otherwise you
> > need to reboot your machine again to connect using VNC.
> > This is a first step in my objective of chaining 3 computers using a
> > combination of RD and VNC. I can see that this is the only combination
> > for me to access a third computer with a local IP behind a DSL router
> > with a dynamic IP. I have 2 computer with that kind of setup and only
> > my
> > Win2003 Server has a public IP that is why I want to chain it. The
> > possible setup would be like this:
> > Say: PC1 = XP (Behind Dynamic IP Router with local (192...) IP)
> > PC2 = XP (Behind Dynamic IP Router with local (10...) IP)
> > SVR1 = Win2003 with Static Public IP
> > 1. PC1 (RD client) ----------------------> SVR1 (RD Server + VNC
> > Viewer
> > Listening) <---------------------------PC2 (VNC Server initiating add
> > clients)
> > 2. PC1 (VNC Viewer) ------------------> SVR1 (VNC Server + VNV Viewer
> > Listening) <-------------------------PC2 (VNC Server initiating add
> > clients)
> > Theoretically, PC1 can gain access to PC2 using SVR1 as bridge but I
> > still have no luck so far. THis is the first time that I am using VNC
> > listening viewer on SVR1. I have tested listening viewer before with
> > other PC and it was working fine. Only this time I want it changed. I
> > am not sure if VNC Server initiated connection uses the same port of
> > 5800 and/or 5900. Those are the only two ports I opened with the
> > firewall for VNC. Your input would be appreciated.
> > I hope this helps as well.
> > Regards,
> > Cesar
> > _____
> > From: Cesar Dela Paz
> > Sent: Saturday, October 02, 2004 3:50 PM
> > To: 'vnc-list "at" realvnc.com'
> > Subject: SelectObject to CompatbleDC failed
> > Hello,
> > Anybody experience the error "SelectObject to CompatbleDC failed."? I
> > can't connect to my server who has a private and public IP. The public
> > IP points to the private IP. I can connect thru Remote Desktop. Even
> > web publishing is working well over the internet.
> > Any help is aprpeciated.
> > Regards,
> > Cesar
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