ftp.ntua.gr:/ubuntu/dists/bionic-updates/main/debian-installer/binary-amd64/by-hash/SHA256/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 879d90d2750193132281f72335516661f9eb08affa57f..> 10-May-2021 23:21  1.3M  
[   ] 60bfc2cb9f8812331a91b7365f7f2a54e031f84c3d256..> 10-May-2021 23:21  1.0M
Apache/2.2 Server at ftp.ntua.gr Port 80