ftp.ntua.gr:/ubuntu/dists/xenial/main/installer-amd64/current/images/cdrom/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] initrd.gz                                        20-Apr-2016 18:53   13M  
[   ] vmlinuz                                          20-Apr-2016 18:53  6.7M  
[   ] debian-cd_info.tar.gz                            20-Apr-2016 18:53  1.7M  
[DIR] xen/                                             20-Apr-2016 18:53    -
Apache/2.2 Server at ftp.ntua.gr Port 80