This is an old revision of the document!
The built-in FTP (File Transfer Protocol) Server is an alternative way to transfer files in/out of your router and its attached storage.
Enable FTP Server:
TLS support: Checking this option enables support for TLS-encrypted communication.
FTP Port: Here, you specify the port to be used for communications. (Default: TCP 21)
Anonymous User Access:
This dropdown allows you to choose whether anonymous users are allowed access to the FTP Server and which file rights they are given.
Allow Admin Login: Enables your local system administrator account as a user for the FTP service.
Log FTP requests and responses: The FTP Server will save all FTP activity (logins/logouts/uploads/downloads/etcetera) via the syslog facility to /var/log/messages.
Anonymous Root Directory: This specifies the location at filesystem-level that is visible to anonymous connections.
Public Root Directory: This filesystem location is accessible by any defined FTP user.
Private Root Directory: This filesystem location is accessible only by the owner. It indicates the location of the Root private directory. Each user will have a protected subfolder under this location.
Directory Listings:
This controls users' ability to do directory listings.
Maximum Users Allowed to Log in: Here you specify the maximum number of logged in users at one time. Additional users trying to log in above the limit will be rejected.
Maximum Connections from the same IP: FTP allows you to connect via multiple sessions from the same client IP address. This option allows you to specify how many simultaneous FTP connections you wish to allow from the same user.
Maximum Bandwidth for Anonymous Users: Built-in FTP throttling will impose a bandwidth limit (upload/download) for each anonymous user connected.
Maximum Bandwidth for Authenticated Users: Built-in FTP throttling will limit the amount of bandwidth each authenticated user can use.
Idle Timeout: Specifies the timeout period, in seconds, until a user is disconnected due to inactivity.
Limit Connection Attempts: This option works only when FTP is enabled on the WAN. If selected, two new fields will appear where you can define the maximum number of logon attempts within a given time period. Any further connection attempts to the FTP Server will be rejected.
Custom configuration: is a field where you can specify advanced parameters. Please note the software is Vsftpd, hence you need to consult its official documentation if you plan to affect this field.
User accounts:This is where you define FTP users. Users defined here will have meaning only within the FTP service e.g. no system account is created. The access field requires some explanation as you can set it to: Read/Write -Read Only - View Only - Private
Username: The user account name
Password: Its password
Read/Write: Is essentially full access
Read only: can only browse and download
View Only: can only browse
Private: Can only access the own folder (no public area)