ftp.ntua.gr:/ubuntu/dists/focal/main/dist-upgrader-all/?C=N&O=D 
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[DIR] Parent Directory                                                      -   
[DIR] current/                                         08-Apr-2020 23:53    -   
[DIR] 20.04.18/                                        08-Apr-2020 23:53    -   
[DIR] 20.04.17/                                        06-Apr-2020 17:08    -   
[DIR] 20.04.16/                                        28-Mar-2020 03:58    -
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