DSM-G600, DNS-3xx and NSA-220 Hack Forum

I was trying to find where I can determine who is logged in and if the are currently logged in the DNS-323!??

I found nothing in the admin web page.
I found only in /var/log
a file called xferlog
-- I assume it would list transfered files log
-
I guess if i log in via ftp I can determin how many concurrent users are present  based on the welcome message..
--
Any better ideas?

Thanks!