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  1. #1

    FTP during tcpdump


    I need to start a tcpdump, and then download a file by FTP. I can't understand any way of achieving this in the tcpdump man file, iany help would be greatly appreciated! Thanks.

  2. #2
    Trusted Penguin Irithori's Avatar
    Join Date
    May 2009
    Ftp is a bit tricky, as both passive and active use two connections with one of these connections being dynamic.

    The following will catch all connections to a <FTP_HOST> and ignore port 22.
    You can ignore more ports, if applicable.
    tcpdump -n -i <DEVICE> host <FTP_HOST> and not port 22
    You must always face the curtain with a bow.

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