vsftpd breaks connection on directory listing September 08, 2018, 08:24:19 PM I needed to grant upload access to a server, so I slapped vsftpd on it and did the configuring of virtual users, directories and such. It's able to recieve connections now, but for whatever reason any attempt to list a directory ends with a disconnection. I even tried FTPing from the same machine the server runs on. This is what I get:Quote230 Login successful.Remote system type is UNIX.Using binary mode to transfer files.ftp> pwd257 "/" is the current directoryftp> ls200 PORT command successful. Consider using PASV.150 Here comes the directory listing.421 Service not available, remote server has closed connectionI already checked for dirlist_enable=yes. I've read this issue may be caused by firewalls, but since I'm connecting from the same machine, this surely can't be the case here. I even installed vsftpd on my home server with default config that allows anonymous login and it has exactly the same issue. Does anybody have a clue?