ftp.ntua.gr:/ubuntu/dists/groovy-backports/universe/binary-amd64/?C=N&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] by-hash/                                         24-Apr-2020 16:55    -   
[   ] Release                                          14-May-2021 09:23  110   
[   ] Packages.xz                                      14-May-2021 09:23  3.8K  
[   ] Packages.gz                                      14-May-2021 09:23  4.1K
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