ftp.ntua.gr:/debian/dists/oldstable-backports/non-free/debian-installer/binary-s390x/by-hash/SHA256/?C=N&O=D 
Icon  Name                                                                              Last modified      Size  
[DIR] Parent Directory                                                                                       -   
[   ] bdca44d846142065ac8cfebc1a7a424ac02a398387a81d2868a70bdf23ecb03f                  30-Aug-2019 11:21  182   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                  07-Jul-2019 16:52   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80