ftp.ntua.gr:/debian/dists/stretch-backports/main/debian-installer/binary-amd64/by-hash/MD5Sum/?C=N&O=D 
Icon  Name                                                                        Last modified      Size  
[DIR] Parent Directory                                                                                 -   
[   ] dd2391bd106b86736c7e0c33becb9fe8                                            16-Oct-2020 17:00   11K  
[   ] b1969a49d972002be04f9ae52fcec29e                                            16-Oct-2020 17:00  9.8K  
[   ] 6bd9b9ccae577752bc7e72e586c0b5b4                                            18-Jun-2017 11:28  177
Apache/2.2 Server at debian.noc.ntua.gr Port 80