ftp.ntua.gr:/debian/dists/stretch-backports-sloppy/non-free/source/by-hash/SHA256/?C=M&O=D 
Icon  Name                                                             Last modified      Size  
[DIR] Parent Directory                                                                      -   
[   ] f5987ea6f83bc5a70ad5a35fb556ced60ecd4b079a1db17ed65e4fc166df80c4 06-Jun-2021 16:57  712   
[   ] a828c9265b70ef96439d01e02e4ada76d0384f1baada56930b7db144886fe05c 30-Aug-2019 11:21  189
Apache/2.2 Server at debian.noc.ntua.gr Port 80