ftp.ntua.gr:/debian/dists/stretch/main/installer-amd64/current/images/hd-media/?C=N&O=D 
Icon  Name                                                       Last modified      Size  
[DIR] Parent Directory                                                                -   
[   ] vmlinuz                                                    12-Jul-2020 20:49  4.1M  
[   ] initrd.gz                                                  12-Jul-2020 20:49   15M  
[DIR] gtk/                                                       12-Jul-2020 20:49    -   
[   ] boot.img.gz                                                12-Jul-2020 20:49   58M
Apache/2.2 Server at debian.noc.ntua.gr Port 80