ftp.ntua.gr:/debian/dists/stretch-backports-sloppy/non-free/debian-installer/binary-all/by-hash/SHA256/?C=S&O=D 
Icon  Name                                                                                 Last modified      Size  
[DIR] Parent Directory                                                                                          -   
[   ] 7ffa64380cbbe27bd337b709fa6c4bb09f13345f453c4e6dc1706f67e4acb41b                     30-Aug-2019 11:21  186   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                     07-Jul-2019 16:52   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80