ftp.ntua.gr:/debian/project/experimental/non-free/debian-installer/binary-s390x/by-hash/SHA256/?C=N&O=D 
Icon  Name                                                                         Last modified      Size  
[DIR] Parent Directory                                                                                  -   
[   ] 7dc2db1fce4079c7d68ecf84337086bfea681071bc1d9f57d337cadb0eca6058             18-Jun-2017 11:28  130   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275             18-Jun-2017 11:11   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80