Passive mode FTP !

Enable the passive port range for Pure-FTPd !!

Before that, an overview of different modes for an FTP connection.

File Transfer Protocol (FTP) has 2 modes that you can use for an FTP connection: active and passive. During active mode, the FTP server responds to the connection attempt and returns a connection request from a different port to the FTP client. FTP’s passive mode allows the FTP client to initiate both connection attempts.

Now, to enable passive mode and its range,

* Open the /etc/pure-ftpd.conf configuration file in your preferred text editor.
* Remove the comment (#) from the beginning of the line which contains the PassivePortRange option.
* Change that line to the following:

PassivePortRange 49152 65534 ( indicate the range here )

* Save the changes to the configuration file.
* Run the /usr/local/cpanel/scripts/restartsrv_ftpserver command to restart the server.

Remember to open these ports in firewall.