ftp.ntua.gr:/debian/dists/stretch-backports/contrib/binary-all/by-hash/SHA256/?C=M&O=A 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] 706e107ada1e0fe75a9423c07f5baef52cb89bd1b0c79ce55b6f5ac3e1af91b4 18-Jun-2017 11:28  178   
[   ] 0f7d9d14e09723c8994e8ab401295883ea7ebcda28ca482dcbc929dec7e33a69 11-Sep-2020 16:57  5.1K  
[   ] d9ef852b6704bd66c9e48621c2049dc57ab453eb7308f3332693734e69a4ecfe 11-Sep-2020 16:57  4.8K
Apache/2.2 Server at debian.noc.ntua.gr Port 80