ftp.ntua.gr:/debian/dists/stretch/main/installer-amd64/20170615/images/hd-media/?C=N&O=D 
Icon  Name                                                        Last modified      Size  
[DIR] Parent Directory                                                                 -   
[   ] vmlinuz                                                     15-Jun-2017 11:34  4.0M  
[   ] initrd.gz                                                   15-Jun-2017 11:34   15M  
[DIR] gtk/                                                        15-Jun-2017 23:55    -   
[   ] boot.img.gz                                                 15-Jun-2017 11:34   58M
Apache/2.2 Server at debian.noc.ntua.gr Port 80