ftp.ntua.gr:/ubuntu/dists/focal-proposed/main/signed/linux-oem-5.6-amd64/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         06-May-2021 17:53    -   
[DIR] 5.6.0-1056.60/                                   06-May-2021 17:53    -   
[DIR] 5.6.0-1055.59/                                   18-Apr-2021 13:53    -   
[DIR] 5.6.0-1053.57/                                   10-Apr-2021 01:18    -
Apache/2.2 Server at ftp.ntua.gr Port 80