ftp.ntua.gr:/debian/dists/stretch/non-free/debian-installer/binary-arm64/by-hash/SHA256/?C=N&O=A 
Icon  Name                                                                  Last modified      Size  
[DIR] Parent Directory                                                                           -   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275      18-Jun-2017 11:11   32   
[   ] d9d8b792b4dbe68d30449a95e7c147f1dd7e5adb68afb35f54ad4e2b0dfbc7c3      14-Aug-2021 10:42  126   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec      19-Jun-2017 23:59   20
Apache/2.2 Server at debian.noc.ntua.gr Port 80