ftp.ntua.gr:/debian/dists/bullseye-backports/non-free/debian-installer/binary-amd64/by-hash/SHA256/?C=S&O=D 
Icon  Name                                                                             Last modified      Size  
[DIR] Parent Directory                                                                                      -   
[   ] c32a080201cb8fb000d558f5f93d9accce22b0c13683dbe1444cb13b3e0e5eac                 30-Aug-2019 11:21  182   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275                 07-Jul-2019 16:52   32
Apache/2.2 Server at debian.noc.ntua.gr Port 80