ftp.ntua.gr:/debian/dists/stretch/main/debian-installer/binary-s390x/by-hash/SHA256/?C=N&O=D 
Icon  Name                                                              Last modified      Size  
[DIR] Parent Directory                                                                       -   
[   ] 78ac6537efc7aa61aaf29949592e0a1bc7d96717bf8c462f5ec35c8b18c2806d  18-Jul-2020 13:40   55K  
[   ] 700a08dfdff8ba06e9b0d778a92c761adf5d175b48c4a0a2e0891e8087ba60af  14-Aug-2021 10:42  122   
[   ] 26d3e43c51a6a64b5fef0330361ebad9267eb760748e2fe1f383ff1d7e5b06f6  18-Jul-2020 13:40   46K
Apache/2.2 Server at debian.noc.ntua.gr Port 80