ftp.ntua.gr:/ubuntu/dists/xenial/main/installer-amd64/current/images/hd-media/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] boot.img.gz                                      20-Apr-2016 18:53   23M  
[   ] initrd.gz                                        20-Apr-2016 18:53   16M  
[   ] vmlinuz                                          20-Apr-2016 18:53  6.7M
Apache/2.2 Server at ftp.ntua.gr Port 80