ftp.ntua.gr:/ubuntu/dists/focal-security/main/debian-installer/binary-amd64/by-hash/SHA256/?C=D&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[   ] 4a2f0f5f6b9fe803d51e50e72dddf350f561730cb79a3..> 11-May-2021 23:27  249K  
[   ] 274bf0e63e81af1611ee92dbd0dbb778bf30e3df50227..> 11-May-2021 23:27  202K
Apache/2.2 Server at ftp.ntua.gr Port 80