That is a pretty dangerous configuration you have there. VNC transfers passwords in the clear, so it is no more save as a WAN protocol than 'Telnet' or 'FTP', both of which are disfavored relative to more secure tools like 'ssh'. Instead of opening up a whole block of addresses like that I would open up just port 22 to some machine running an ssh-daemon, then use the tunneling features of VNC to forward some local port to the VNC service port of the machine I'm interested in. The rule for VNC is that port 5900 is the same as ':0', 5901 is the same as ':1', etc. Using 'putty' I forward L5910 to 192.168.1.2:5900, for example, and that means that when I connect to 'localhost:10' it actually shows me '192.168.1.2:0'.

SSH daemons available for windows include:

WinSSHd ($40/for personal use only)
Cygwin (freeware, requires familiarity with Unix)

Cheers,
-kls


Michael Lande wrote:
I'll admit it. I'm a newbie. How do pick which machine to login to?

A friend help me get started with VNC on WinXP so I could provide remote support for a client of mine. I wanted to be able to login to the PC which is behind a cable modem and a DHCP router. All is well on the first PC. My friend had me open up ports 5850 - 5950 on the firewall which is a DLink router. We also found the current IP address for the WinXP PC which I obtained from whatismyip.com. It is a dynamic ip address from the cable company and it hasn't change yet (6 weeks, same ip).

 From my office I am able to login to the WinXP PC across the internet.

Now I installed RealVNC on 2 more WinXP boxes at my clients location. When I went to whatismyip.com to see the ip address of these 2 new PC/ VNC servers they report the same ip address that I use to login to the first PC.

I'm using Chicken of the VNC. For the machine I have been successfully logging into I use Host = 24.15.XX.XXX Display = 0 Password = XXXXX. I thought I read somewhere that for the second PC/ VNC server I use Display = 1, third PC - Display = 2.

I am not able to login to the 2 new PC's that I installed RealVNC on today. How do I login to PC#2 and PC#3? The password is the same on all 3 VNC setups.

Any help would be greatly appreciated.
Thanks.
Mike
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