ftp.ntua.gr:/debian/dists/stretch-backports/non-free/binary-armhf/by-hash/MD5Sum/?C=N&O=D 
Icon  Name                                                           Last modified      Size  
[DIR] Parent Directory                                                                    -   
[   ] 6d72bdce9aa19f4f9e10cbbe1fdbe968                               13-Jul-2020 16:57   14K  
[   ] 55650ab2f6097a90cb79389a67006130                               13-Jul-2020 16:57   16K  
[   ] 2f85decf4d0f09b3f2a49139184a6edb                               18-Jun-2017 11:28  181
Apache/2.2 Server at ftp.grnet.gr Port 80