ftp.ntua.gr:/debian/dists/stretch/main/debian-installer/binary-arm64/by-hash/SHA256/?C=M&O=D 
Icon  Name                                                              Last modified      Size  
[DIR] Parent Directory                                                                       -   
[   ] 5ca5350a52d8445ff92e7d41b79fedbfa2d2caebeb7302652fcdf4ab080705e8  14-Aug-2021 10:42  122   
[   ] d1f60884b662dec4b039596befd98d0d8bba2f3f125e50d14d11c7b0677cb164  18-Jul-2020 13:40   48K  
[   ] fa6e80b44a5ef83081b8372222d575db947402f7f6464d4635449975a7880b99  18-Jul-2020 13:40   58K
Apache/2.2 Server at debian.noc.ntua.gr Port 80