Accessing more than one computer

[John Aldrich]

On Wednesday 18 November 2009, Philip Herlihy wrote:
> Presumably you've successfully routed port 5900 to the one machine
>  you're managing now.
> 
> You have two options, depending on the capabilities of your router.  My
> router allows me to "translate" an incoming port, so I can connect using
> port nnnn and the receiving computer sees a connection on mmmm.  If your
> router can do this, then you can leave the VNC servers operating on port
> 5900, and set the router up to make the translation.  With many routers,
>  you set up a named "service" for the incoming port, and set up the
>  translation when you configure the firewall "rule".
> 
> If your router won't do this, then you need to configure the VNC service
>  to use some other port, eg 5091.  Then create additional "services" in
>  your router (you might name one VNC-5901) and set up additional rules
>  to route such connections to the desired machines.  You can do this
>  many times, for many machines.  To access the machine you want, simply
>  append a colon and the port number to the router's IP at the client. 
>  So, if you were connecting now to a VNC server at 111.222.333.444 you'd
>  instead use 111.222.333.444:5901.
> 
I could be mistaken, but I thought if you were entering a *port* number you 
needed to use a DOUBLE-colon, eg ::5901, whereas if you were specifying 
just a "screen" number, you could do :1, or :2 (for 5902, etc.) Or was this 
one of the things tweaked in more recent releases?