ftp.ntua.gr:/mirror/ubuntu/dists/focal-updates/main/dist-upgrader-all/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         22-Apr-2021 21:28    -   
[DIR] 20.04.32/                                        22-Apr-2021 21:28    -   
[DIR] 20.04.31/                                        09-Apr-2021 00:23    -   
[DIR] 20.04.30/                                        21-Jan-2021 15:18    -
Apache/2.2 Server at ftp.ntua.gr Port 80