ftp.ntua.gr:/ubuntu/dists/focal-updates/main/debian-installer/binary-amd64/by-hash/SHA256/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] bd4485276e0e7ff501ada68d095ebc30aa2a1542ed975..> 11-May-2021 20:34  249K  
[   ] 2d80667e882304d2e3b377775e26e9ea7f96460283764..> 11-May-2021 20:34  322K
Apache/2.2 Server at ftp.ntua.gr Port 80