ftp.ntua.gr:/debian/dists/stretch-backports-sloppy/main/debian-installer/binary-amd64/by-hash/SHA256/?C=N&O=A 
Icon  Name                                                                               Last modified      Size  
[DIR] Parent Directory                                                                                        -   
[   ] 50a6e9d98387d7a12aa3d9f6d9cdd452559d8d070d3dc393c80354428e3c87c9                   22-Sep-2020 16:56  1.2K  
[   ] 9c2891bd28e4aa0e6e10c1187303e98a884f76abc250b7b42402c01748ad5d22                   30-Aug-2019 11:21  184
Apache/2.2 Server at debian.noc.ntua.gr Port 80