> Doesn't having to use something like VPN kind of defeat the general concept
> of VNC?

Different Functions.

VNC allows for a remote user to control a machine.  

VPN is networking tool to allow *ANY* traffic to travel securely 
between two points.

There are a few combo type of tools available...
tightVNC
mindVNC

But in the end you *MUST* understand that there are multiple things 
working together to get the job done.  Each doing just one part.

Just one example of parts, just to get VNC running at home.

2 computers 
2 nic cards
2 cables
1 hub/switch  
tcp/ip stack 
both computers on same subnet

Now to go far for between two points on the internet.

For each end...

1 computer
1 nic card
3 cables 
1 hub/switch
1 firewall/router
1 cable modem
tcp/ip stack
dyndns subdomian (makes finding easier)
configure  vpn to allow transport though internet

And that is still simplifed.  

jackb
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