Due to some problem with my vsftpd an passive mode, I added the following lines to my vsftpd.conf.master: I don't know why passive mode did not correctly work before, but I was due to some firewall issues on the server. So how about adding these to the general vsftpd.conf.master ? Even if users do not need them, the should not cause any problems, because it just limits the pasv ports to a specific port region on that the firewall may be opened.