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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?

  • Wikipedia has a comprehensive list of ports at "List of TCP and UDP Ports". You should look there. – Stone True Nov 21 '15 at 0:29
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It's an FTP server from "scientia-ssdb":

http://www.linuxquestions.org/questions/linux-newbie-8/unable-to-list-the-directory-after-changing-ftp-port-from-21-a-4175454098/

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