ftp.ntua.gr:/ubuntu/dists/groovy-updates/main/dist-upgrader-all/?C=S&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] current/                                         22-Apr-2021 21:28    -   
[DIR] 20.10.15/                                        22-Apr-2021 21:28    -   
[DIR] 20.10.14/                                        26-Nov-2020 12:38    -   
[DIR] 20.10.13/                                        09-Nov-2020 11:13    -
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