ftp.ntua.gr:/debian/dists/buster-backports/contrib/debian-installer/binary-s390x/?C=S&O=A 
Icon  Name                                                     Last modified      Size  
[DIR] Parent Directory                                                              -   
[DIR] by-hash/                                                 07-Apr-2019 23:17    -   
[   ] Packages.xz                                              07-Apr-2019 23:17   32   
[   ] Release                                                  07-Apr-2019 23:17  179
Apache/2.2 Server at debian.noc.ntua.gr Port 80