FileZilla is free open-source software with many great options often found in paid FTP programs. It looks like this is the case though, as the FTP account is accepted and we see the port command in debug and then you can try to put the file.įor the 'By Hand' Command Line, try NOT using Binary, it's often not necessary, and I have seen using the Binary command lead to Zero Length files.One of the most popular FTP programs is FileZilla. In Passive the FTP Server specifies it's data port and tells the client which port it should connect on.) (FYI: I believe the Windows CMD Line FTP DOES NOT support Passive, only Active connections, in an Active connection the FTP Client chooses the port it will look for responses back on and talks to the FTP Server's default data port. However if this were the case then your commands should be failing regardless. Otherwise the FTP server may be using a special set of ports for data as well as commands, and FTP will try 21 by default. I've tried using other command line apps and get the same result.psftp, winscp, moveit all failed.Īre you certain that the FTP Server is normal FTP? It may be FTP/SSL (FTPS) or FTP/SSH (SFTP), in either case the connection would not work properly through the normal FTP command.įrom what I recall if the server is using either of these encryption methods it would most likely be FTP/SSL since that can allow a regular connection for commands browsing but encrypt just the data portion. User ( :(none)): ftp_userĤ25 Unable to build data connection: Connection refusedĪnd we end up with a zero-length file on the server.the file is created but the contents are not transferred.

When run from a command line, the response is:Ģ20 ProFTPD 1.3.3c Server (hostname) We have no problem using FileZilla doing the post manually, but when we try to post using the command line ftp with a batch file, it fails.the batch file is as follows: A client of ours has an ftp server set up to listen on port 2525 and we are trying to set up an automated posting to this server.

Filezilla port number for ftp windows