ftp.ntua.gr:/debian/dists/stretch-backports/non-free/binary-amd64/Packages.diff/by-hash/MD5Sum/?C=M&O=D 
Icon  Name                                                                         Last modified      Size  
[DIR] Parent Directory                                                                                  -   
[   ] 5869824fdbdb735e3a7579b53819a738                                             09-Dec-2020 10:04   27K
Apache/2.2 Server at debian.noc.ntua.gr Port 80