FileZilla server Tutorial (en)

Enable Passive mode port range

To allow remote connections to your FTP server through a firewall and/or router you will need to set a port range. Click Server from the menu and Configure (Ctrl+F), Expand FTP Server menu tree (if not already), click Passive mode, ensure the Use custom port range check box is ticked and set a custom port range of at least 100 ports in the From and To boxes, this can be any range between 49152 and 65534 (eg. 52100 to 53100). Leave the Use custom host blank and ensure the Use the default host for local connection check box is ticked.

Allowing Remote Administration

The Administration interface is a GIU that will allow you to configure, manage and monitor your FTP server from either the machine that the server is directly installed on or remotely from another computer inside or outside of your network. Administering your FTP server can only be done through the Administration interface GUI and therefor a lightweight installation of the Server application will need to be completed by selecting Administration only from the Choose components screen on any computer you wish to manage the FTP server from.
WIP more to follow . Once completed, remote access from inside your local network can be made by using the Static IP of the FTP server and port along with the password you set during the installation process,

Setup Groups and Members

WIP more to follow

Share Folders with Groups and Members

WIP more to follow

Port Forwarding / NAT for remote access

WIP more to follow