idea for next freevsd

[denny @ d - Rex . net]

because the cost of ip addresses,
why not implement NAT/ipchain in VSD, so that each virtual domain
have one local ip (192.168.x.x) instead of real ip.
all share only one (or two for dns) real ip and then VSD decide
which local ip to use.

this will also make the whole system more SECURE.
because virtual host do not have real ip, it's invisible to outsider.
this way, VSD automagically function as a firewall too.