ftp.ntua.gr:/debian/dists/stretch-backports/main/binary-s390x/by-hash/?C=M&O=A 
Icon  Name                                               Last modified      Size  
[DIR] Parent Directory                                                        -   
[DIR] MD5Sum/                                            11-Nov-2020 04:31    -   
[DIR] SHA256/                                            11-Nov-2020 04:31    -
Apache/2.2 Server at debian.noc.ntua.gr Port 80