ftp.ntua.gr:/ubuntu/dists/focal/main/debian-installer/binary-amd64/by-hash/SHA256/?C=S&O=A 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] e0ad1afd7c31aa9282c470e66a92731b54f27399282fb..> 22-Apr-2020 19:40   40K  
[   ] dc3fd373df0b8c05b0645afdee5234241fd9a7906289b..> 22-Apr-2020 19:40   48K
Apache/2.2 Server at ftp.ntua.gr Port 80