ftp.ntua.gr:/ubuntu/dists/xenial-updates/universe/debian-installer/binary-amd64/by-hash/SHA256/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 89b134ff440cf2df5b1173a04798c117f8e8b58943978..> 29-Apr-2021 15:50   91K  
[   ] 1575da2ef200eee81cc9ccc026675513d8c7db3e6b611..> 29-Apr-2021 15:50  111K
Apache/2.2 Server at ftp.ntua.gr Port 80