ftp.ntua.gr:/ubuntu/dists/focal-backports/main/debian-installer/?C=M&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] binary-i386/                                     14-May-2021 09:04    -   
[DIR] binary-amd64/                                    14-May-2021 09:03    -
Apache/2.2 Server at ftp.ntua.gr Port 80