ftp.ntua.gr:/ubuntu/dists/bionic-backports/universe/source/?C=D&O=D 
Icon  Name                                             Last modified      Size  Description
[DIR] Parent Directory                                                      -   
[DIR] by-hash/                                         25-Oct-2017 02:16    -   
[   ] Sources.xz                                       14-May-2021 09:23  5.2K  
[   ] Sources.gz                                       14-May-2021 09:23  5.6K  
[   ] Release                                          14-May-2021 09:23  111
Apache/2.2 Server at ftp.ntua.gr Port 80