[Cyber Command] Configuration data backup test FTP Server 21
Problem Description
In [System Settings] – [System Maintenance] – [Data Backup], add a new FTP Server configure data backup, use a server with an uncommon FTP Server as the data receiver, and test the FTP Server to see an error, as shown below:
Warning Very-Low Risk

solution
Cyber Command does not currently support FTP servers other than port 21 as data backup. After replacing with port 21 FTP server, the test and backup are normal.
Original Link
https://support.sangfor.com.cn/cases/list?product_id=24&type=1&category_id=9835&isOpen=true