Hello I have a strange problem, I want to transfer files via ftp between two servers. When I transfer the files sing the client, it works fine, but when I use command line I get: 425 Can't open data connection. When I use the command line from my computer it works fine. I configured Passive mode of the server to use ports 5000-5100, and opened them on both servers, in Inbound and Outbound sections. What am I missing?
By "using the client" I assume you mean the Filezilla GUI client? Is that set to use passive mode? If you are using passive mode you need to also direct the command-line client to use passive mode. The command-line client uses active mode by default. Enter the following statement after you connect to the ftp server:
ftp> QUOTE PASV
So, the full conversation would be like
C:\> ftp ftp.mydomain.com [enter your login and password as necessary] ftp> QUOTE PASV ftp> GET somefile.txt ftp> BYE
Give that a shot and see if it works for you.