i don't know why when i try make scan to my VBOX (Win XP) i have this line below when i use NMAP:
Discovered open port 21/tcp on 10.10.10.111
and If i use Nessus it's show me the port 21 is open but no more details.
by the way i have it even if i reinstall new VBOX (Win XP).
may some one have idea about it.