ftp.ntua.gr:/debian/dists/buster-backports/non-free/debian-installer/binary-s390x/?C=N&O=A 
Icon  Name                                                      Last modified      Size  
[DIR] Parent Directory                                                               -   
[   ] Packages.xz                                               07-Apr-2019 23:17   32   
[   ] Release                                                   07-Apr-2019 23:17  180   
[DIR] by-hash/                                                  07-Apr-2019 23:17    -
Apache/2.2 Server at ftp.ntua.gr Port 80