If the client sends PORT/EPRT, then it's Active mode, if it sends PASV/EPSV, Passive mode. It's the client that decides what mode IT wants to use. So, would it be possible to somehow have both passive and active connection enabled on the same physical computer?īoco wrote:Modern FTP servers do support and accept BOTH modes.

I don't want to change the machine to active mode - that would disrupt all the current users, but I don't have any easy way to get my non-tech users connected to a passive mode machine, since the DOS ftp.exe does not support passive, and Windows has no other automateable FTP functions (that I know of - if I'm wrong about that, I'd love to know).

I recently lost the machine that used active mode, and need to move the operation to another machine, that already has FileZilla configured for passive mode, and other clients connecting to it. But I can send them a script and say, 'Download and double-click on this.' The end users are not technical people and are not easily available to me physically, so installing FTP client software on their machines would be a hassle, would have to be repeated every time they get a new machine, and they wouldn't know how to use it anyway. It used a VBScript file to generate DOS FTP commands and executed those to download stuff. I have some legacy stuff that uses DOS ftp.exe, that formerly connected to a Linux server configured for active transfers. Is it possible to configure FileZilla to accept both active and passive connections? Two instances on same machine? Separate IP addresses? Same IP but different ports? Anything like that?

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