ftp.ntua.gr:/debian/dists/bullseye-backports/non-free/debian-installer/binary-armhf/by-hash/SHA256/?C=N&O=D 
Icon  Name                                                                             Last modified      Size  
[DIR] Parent Directory                                                                                      -   
[   ] 9b4872b839dd8fa95f0a498b1c02b1f819c08937d6ca2c5b91192a7cc6e794db                 30-Aug-2019 11:21  182   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                 07-Jul-2019 16:52   32
Apache/2.2 Server at ftp.ntua.gr Port 80