NAS200 and ftp on pc

Discussion in 'Cisco/Linksys Network Storage Devices' started by twistedsam, Feb 28, 2010.

  1. twistedsam

    twistedsam LI Guru Member


    Is it possible to run 2 ftp's.

    I got 1 pc, it's wireless N connected to my Asus router RT-N16
    I'm running a ftp on my pc on port 21 with a username.
    All working great.
    My nas200 is connected to router and latest linksys firmaware installed (NAS200_V3479)
    Now i would like to setup my nas200 as ftp too, so i got 2 ftp's were friends can login to.

    Is this possible?

    Till now i've never been able to rum my ftp on another port than 21.

    Thx in advance, Sam
  2. jac_goudsmit

    jac_goudsmit Super Moderator Staff Member Member

    As I mentioned on the Linksys boards, running an FTP server behind a NAT router such as the Asus RT-N16 is only possible if the router is FTP-aware. If the FTP server on your PC works from outside your LAN, it's because apparently your router knows how to translate the commands to port 21 so it contains the correct IP addresses (that means your RT-N16 has an FTP proxy, which is cool!).

    It's possible to configure the NAS200 to use a different port for the FTP server, but when you configure your router to forward incoming traffic from that port on the Internet to that port on your NAS200, your router has to be aware that it's not just a TCP/IP server, but an FTP server, so it applies the proxy on that port as well as on port 21. I kinda expect that that will be impossible but I don't know for sure, the manual I downloaded from the ASUS website didn't have enough information to tell for sure.

    Bottom line: this is a problem that's inherent to FTP, and it can only be solved if your router supports it. Of course you could map the NAS200 drives on your PC and make them public through the FTP server there (so you'd only have one FTP server: the one on your PC) but I'm guessing you want the NAS200 to do the work because it doesn't use as much electricity and might not make as much noise as a PC...

    Or you could install Jac4 and use the SCP protocol instead of FTP, this will also fix the problem that all your data and your password are not encrypted with FTP, and can easily be sniffed by your neighbors...

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