Die Firewall verhindert ein LS -> Timeout. Funktioniert erst nach umschalten in Passive mode:
c1audio@ace1:~$ ftp media.vmk.zhdk.ch Connected to media.vmk.zhdk.ch. 220 ProFTPD 1.3.1 Server (media.vmk) [195.176.254.136] Name (media.vmk.zhdk.ch:c1audio): vmk 331 Password required for vmk Password: 230 User vmk logged in Remote system type is UNIX. Using binary mode to transfer files. ftp> ls 200 PORT command successful 425 Unable to build data connection: Connection timed out ftp> passive Passive mode on. ftp> ls 227 Entering Passive Mode (195,176,254,136,189,140). 150 Opening ASCII mode data connection for file list lrwxrwxrwx 1 root root 21 Sep 28 2011 incoming -> /home/media/incoming/ 226 Transfer complete