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Synology DiskStation User's Guide
Based on DSM 3.1
92 Chapter 8: Access Files from Anywhere
Advanced Settings
Report external IP in PASV mode
By enabling this option, the server will report its external IP to FTP clients. The reported IP will be listed in the
connection log of the FTP client. This option only works when the server is behind a NAT, and with the FTP
clients residing in a different subnet as the server. In most cases you don't need to enable this option, but if the
FTP clients fail to connect to the server, then please try with this option enabled.
Enable UTF-8 filename support
If FTP client supports UTF-8, enable this function to better handle multilingual filename. However, the support to
the old version of FTP clients is limited. If your FTP client has trouble to handle multilingual file name, you might
want to disable this function.
Enable FTP file transfer log
Enable this function to record the log of each downloaded or uploaded file.
To see the FTP file transfer log:
Go to Main Menu > System Information > Log, and choose FTP file transfer log from the drop-down menu.
Enabling FTP file transfer log will affect the system performance.
Set up FTP Connection Restriction
Click the Connection Restriction tab to limit DiskStation users' FTP access to DiskStation.
To set up FTP connection restriction, tick any of the following and click OK:
Allow SSL/TLS connection only: Accept only SSL or TLS connection requests from FTP clients.
Limit connections per IP: Limit the maximum connections per IP.
Enable FTP bandwidth restriction: Restrict the bandwidth of single FTP connection.