server - Telnet and passive FTP -

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i've problem ftp test server. i've installed , configured filezilla server, it's listening control connection on port 21, can provide passive mode data connection on ports between 50100 , 51100.

i'm trying local connection 127.0.0.1:21 , retrieve list of files , folders in root ftp directory.

filezilla client: work !!! ftp in ms-dos: work !!! telnet in ms-dos: control connection , user authentication ok, switch passive mode, , when i'm trying retrieve files , folder command list respond "can't open data connection transfer of "/"".

i've tried setting firewall rules ports 50100-51100 , filezilla server, it's still not working.

thanks help.

you cannot retrieve files on ftp protocol using telnet client.

while can simulate ftp client typing ftp commands on telnet console, cannot file transfers way. it's because file transfer need separate data transfer connection, telnet client cannot do.

that's why ftp server fails. in active mode, fails connect client machine, because there's nothing listening. in passive more, timeouts waiting client connect data port.


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