FTP – HOW PORT WORK – upload file

[root@prodosec03 tmp]# ftp upload.wuyifan.com
Connected to upload.wuyifan.com (140.238.158.67).
220 (vsFTPd 3.0.2)
Name (upload.wuyifan.com:root): wtaohide
331 Please specify the password.
Password:
230 Login successful.
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> put wutest
local: wutest remote: wutest
227 Entering Passive Mode (140,238,145,138,46,240).
ftp: connect: Connection refused
ftp> pas
Passive mode off.
ftp> put wutest
local: wutest remote: wutest
200 PORT command successful. Consider using PASV.
150 Ok to send data.
226 Transfer complete.
23 bytes sent in 3.3e-05 secs (696.97 Kbytes/sec)

List and Download ftp files from url

http://qr.wuyifan.com/ftp/

https://slacksite.com/other/ftp.html