Configuring port forwarding with NAT

Tag(s):

http://www.virtualbox.org/manual/ch06.html#natforward

VBoxManage modifyvm "next-64bit" --natpf1 "guestssh,tcp,127.0.0.1,8080,,80"
Forwarding host ports < 1024 impossible:
On Unix-based hosts (e.g. Linux, Solaris, Mac OS X) it is not possible to bind to ports below 1024 from applications that are not run by root. As a result, if you try to configure such a port forwarding, the VM will refuse to start.