ftp.ntua.gr:/ubuntu/dists/groovy/universe/binary-amd64/by-hash/SHA256/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] d3a9e6c0a6397467293207872f30621c5ea05052b3ae5..> 22-Oct-2020 16:30   15M  
[   ] adb240f1ddd8fe78350af5cfb6aff6e1f7ced072255f6..> 24-Apr-2020 16:54  100   
[   ] 819d61ba046dd372c796ba7b6123179f3709bda4f37e9..> 22-Oct-2020 16:30   12M
Apache/2.2 Server at ftp.ntua.gr Port 80