ftp.ntua.gr:/debian/dists/stretch-backports/non-free/binary-amd64/Packages.diff/by-hash/SHA256/?C=S&O=A 
Icon  Name                                                                         Last modified      Size  
[DIR] Parent Directory                                                                                  -   
[   ] 47f967a45b3792248673f3d514986f4f95ef962c99f785d4c1d258c2b5f64547             09-Dec-2020 10:04   27K
Apache/2.2 Server at debian.noc.ntua.gr Port 80