How to configure the FTP transfer ports in passive mode using the Proftpd server - YouTube
ftp client passive mode | Netgate Forum
Window] 명령 프롬프트 에서 Linux 접속 500 Illegal PORT command, 425 Use PORT or PASV first
FTP - 425 Can't open data connection (Active Mode does not work) - Super User
NAT not working for FTP server, remote connection can log in but server can't communicate back : r/PFSENSE
linux - Centos7 cannot connect to FTP server , 200 PORT command successful. Consider using PASV. 425 Failed to establish connection - Server Fault
java - org.apache.commons.net.ftp.FTPSClient returning 425 after list command - Stack Overflow
The Illustrated Network sample chapter
FTP - 425 Can't open data connection (Active Mode does not work) - Super User
port forwarding - Unable to connect my filezilla ftp server, returns error 421 Login Incorrect - Super User
윈도우 커맨드창에서 리눅스FTP에 연결하면 (스샷유) : 클리앙
How to Install and Configure FTP Server in Ubuntu
ftp client passive mode | Netgate Forum
linux - Centos7 cannot connect to FTP server , 200 PORT command successful. Consider using PASV. 425 Failed to establish connection - Server Fault
Windows下cmd或者PowerShell FTP 425 failed to establish connection错误简述- PaintChen - 博客园
FTP: a deeper look at an 'Active' file transfer
ftp> ls 500 Illegal PORT command. ftp: bind: Address already in use,500 OOPS: cannot read list_甜甜圈Sweet Donut的博客-CSDN博客_500 oops: cannot read user list file:/etc/vsftpd.u
Solutions For The 425 Use Port Or Pasv First In Steps. - Techyv.com