Step 1: Install iis service and ftp service by yourself [Baidu search by yourself]
Step 2: Add an ftp site [Configure the active port default to 21]
Third-party configuration: ftp passive port [here is set to 3000-4000] Please open this port on the firewall [if it is Alibaba Cloud, please also open this port the day after Alibaba Cloud] [Guardians generally use 55000-56000] are all possible
Note: The predefined passive port range for ftp is usually from 1024 to 65535, because these port numbers will not conflict with commonly used system ports (1 to 1023 are usually reserved for system use). The specific passive port number will vary with different FTP server configurations. If you're setting up an FTP server, you can look for options for passive port ranges in the server's configuration and set them up according to your needs.
The last step: Finally, Alibaba Cloud opens the port
