ftp.ntua.gr:/debian/dists/stretch-updates/main/debian-installer/binary-arm64/by-hash/SHA256/?C=S&O=D 
Icon  Name                                                                      Last modified      Size  
[DIR] Parent Directory                                                                               -   
[   ] 39e8408f7c184e4992418005aedaa8e547f6dee2f1945e49949c5871c37f620b          18-Jun-2017 11:28   90   
[   ] 0040f94d11d0039505328a90b2ff48968db873e9e7967307631bf40ef5679275          13-Apr-2021 22:57   32   
[   ] f61f27bd17de546264aa58f40f3aafaac7021e0ef69c17f6b1b4cd7664a037ec          13-Apr-2021 22:57   20
Apache/2.2 Server at debian.noc.ntua.gr Port 80