ftp.ntua.gr:/debian/dists/buster-backports/non-free/debian-installer/binary-all/?C=S&O=A 
Icon  Name                                                      Last modified      Size  
[DIR] Parent Directory                                                               -   
[DIR] by-hash/                                                  14-Jul-2019 11:26    -   
[   ] Packages.xz                                               14-Jul-2019 10:58   32   
[   ] Release                                                   14-Jul-2019 11:26  178
Apache/2.2 Server at debian.noc.ntua.gr Port 80