ftp.ntua.gr:/debian/dists/stretch/main/installer-amd64/current/images/?C=N&O=D 
Icon  Name                                                Last modified      Size  
[DIR] Parent Directory                                                         -   
[   ] udeb.list                                           12-Jul-2020 20:49  6.5K  
[DIR] netboot/                                            12-Jul-2020 20:49    -   
[DIR] hd-media/                                           12-Jul-2020 20:49    -   
[DIR] cdrom/                                              12-Jul-2020 20:49    -   
[   ] SHA256SUMS                                          12-Jul-2020 20:49   72K  
[   ] MD5SUMS                                             12-Jul-2020 20:49   54K  
[   ] MANIFEST.udebs                                      12-Jul-2020 20:49   48K  
[   ] MANIFEST                                            12-Jul-2020 20:49  1.7K
Apache/2.2 Server at debian.noc.ntua.gr Port 80