[ubuntu] How to monitor rsync and logins

I noticed last night that rsync was ruing on it's own. And, it was ruing for quite a while.

Is there a utility or command to view rsync activity?

I do have a copy of dropbox on my PC. I know there weren't any new files or directories created to warrant 2 hours of file transfers.

Last, is there a utility to monitor and prevent remote logins?