ftp.ntua.gr:/debian/dists/stretch-backports/non-free/source/by-hash/MD5Sum/?C=S&O=A 
Icon  Name                                                     Last modified      Size  
[DIR] Parent Directory                                                              -   
[   ] 9c7c51e77662dba17291c44eecd01c21                         18-Jun-2017 11:28  182   
[   ] 59adb0982ca1d3bbf89ec0939bff2f6d                         13-Jul-2020 16:57  8.2K  
[   ] 745bfbf68a63ad9e6c44a0ad4f00e6e6                         13-Jul-2020 16:57  9.1K
Apache/2.2 Server at debian.noc.ntua.gr Port 80