ftp.ntua.gr:/debian/dists/stretch/main/installer-arm64/20170615+deb9u9/images/netboot/debian-installer/arm64/ 
Icon  Name                                                                                        Last modified      Size  
[DIR] Parent Directory                                                                                                 -   
[   ] bootnetaa64.efi                                                                             12-Jul-2020 20:49  449K  
[DIR] grub/                                                                                       12-Jul-2020 20:49    -   
[   ] initrd.gz                                                                                   12-Jul-2020 20:49   21M  
[   ] linux                                                                                       12-Jul-2020 20:49   14M
Apache/2.2 Server at ftp.grnet.gr Port 80