ftp.ntua.gr:/debian/dists/stretch-backports-sloppy/non-free/binary-all/?C=S&O=D 
Icon  Name                                             Last modified      Size  
[DIR] Parent Directory                                                      -   
[   ] Packages.xz                                      06-Jun-2021 16:57  772   
[   ] Release                                          30-Aug-2019 11:21  186   
[DIR] by-hash/                                         07-Jul-2019 17:21    -
Apache/2.2 Server at debian.noc.ntua.gr Port 80