ftp.ntua.gr:/debian/dists/stretch-proposed-updates/main/debian-installer/binary-ppc64el/by-hash/SHA256/?C=N&O=D 
Icon  Name                                                                                 Last modified      Size  
[DIR] Parent Directory                                                                                          -   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec                     18-Jul-2020 13:40   20   
[   ] bc64783558139f09fddd955e3e14a83da1506dff9d7513537510531a45a15300                     14-Aug-2021 16:55  127   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                     18-Jul-2020 13:40   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80