I'm having a task in a computer security class in school where I'm supposed to scan a host for open ports in order to find out what services are being run there. I have found out (among other things) that the scanned host has an open port 8787 and "Msgsrvr" is being run there, along with Scientia-ssdb on port 2121. What are they, and is it a potential security risk, i.e. should the ports be blocked by the scanned host?
It's an FTP server from "scientia-ssdb":