The FTP Server Has many settings. Generally the default is ok for these.
•Listen Address: This is the local interface to which the FTP Server will listen.
•FTP Port: 21 is the default for the FTP protocol control channel. FTP uses 2 TCP connections, one for data and one for control messages.
•HTTP Port: It is disabled by default because HTTP is an Enterprise feature. Port 80 is the protocol's normal port.
•Max Connections: This is the maximum allowed simultaneous connections. The default of 0 means unlimited.
•Max User Connections: This is the maximum number of allowed simultaneous connections from the same user.
•Idle Time-out: This controls how many seconds the control channel must be idle before the connection will be dropped.
•Logon Message: This is the message that will be sent to the client before the logon prompt
•Logoff Message: This is the message the client will receive in response to a QUIT command.
•Root Folder: This is the default parent folder for all users home directories. remember that users logged in to non-domain accounts will have the permissions of the user that the server is running as.
•Redirect Passive IP: This is the IP address that will be reported to the client in response to the PASV command. This is generally used to input an externally accessible IP address for servers running behind firewalls.
•Passive Port Range: This is the range of ports that will be used in response to the PASV command. Make sure this range is big enough for all your simultaneous connections. A bottom below 1024 is not recommended as these ports are generall reserved. This range should be set on your external firewall as forwarded to the FTP server for FTP with SSL connections to support the PASV command. Remember that if you have other services running on the server to make sure they are not using ports within this range. The server will bypass any port that is in use so there won't be a conflict per say but you might unintentionally expose other services to the internet that way.
•Start / Stop FTP: This button will display the currently available option. If the server is running you will need to stop it to change the other settings available here.