ftp.ntua.gr:/debian/dists/stretch-proposed-updates/non-free/debian-installer/binary-all/by-hash/SHA256/?C=N&O=A 
Icon  Name                                                                                 Last modified      Size  
[DIR] Parent Directory                                                                                          -   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                     18-Jun-2017 11:11   32   
[   ] d3a360aa01698b29b0924fcffd418646c12c9959bc52f275f86e65072b8e6daf                     14-Aug-2021 16:55  127   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec                     19-Jun-2017 23:59   20
Apache/2.2 Server at debian.noc.ntua.gr Port 80