我已经尝试过 pasv 和端口，但没有任何效果。 这是从我的控制台复制的命令和响应：
ftp> user dlpuser
331 Please specify the password.
Password:
230 Login successful.
ftp> pwd
257 "/"
ftp> cd dir1
550 Failed to change directory.
ftp> mkd dir1
257 "/dir1" created
ftp> mkd dir2
257 "/dir2" created
ftp> cd dir1
250 Directory successfully changed.
ftp> put test.txt
425 Use PORT or PASV first.
ftp> quote pasv
227 Entering Passive Mode (44,241,66,173,4,19).
ftp> put test.txt
425 Failed to establish connection.