ftp.ntua.gr:/debian/dists/stretch-backports-sloppy/non-free/debian-installer/binary-amd64/by-hash/SHA256/?C=N&O=A 
Icon  Name                                                                                   Last modified      Size  
[DIR] Parent Directory                                                                                            -   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                       07-Jul-2019 16:52   32   
[   ] 970cd833d549e31c8ba25c8ddd0841b011c1406a55b5b6fe7156c7547c951bfa                       30-Aug-2019 11:21  188
Apache/2.2 Server at debian.noc.ntua.gr Port 80