ftp.ntua.gr:/debian/dists/stretch/main/debian-installer/binary-s390x/by-hash/MD5Sum/?C=N&O=A 
Icon  Name                                                              Last modified      Size  
[DIR] Parent Directory                                                                       -   
[   ] 5e66438d5b408f89fef32520a1caf6e0                                  14-Aug-2021 10:42  122   
[   ] 83ec4194bfb89b1e6210ada0f474269c                                  18-Jul-2020 13:40   46K  
[   ] cffb3013b2ae563dd252ecc93ce4c82c                                  18-Jul-2020 13:40   55K
Apache/2.2 Server at debian.noc.ntua.gr Port 80