ftp.ntua.gr:/debian/dists/sid/main/installer-amd64/20190702/images/netboot/debian-installer/amd64/?C=M&O=D 
Icon  Name                                                                             Last modified      Size  
[DIR] Parent Directory                                                                                      -   
[DIR] pxelinux.cfg/                                                                    02-Jul-2019 01:39    -   
[   ] pxelinux.0                                                                       02-Jul-2019 01:39   41K  
[   ] linux                                                                            02-Jul-2019 01:39  5.0M  
[   ] initrd.gz                                                                        02-Jul-2019 01:39   29M  
[   ] grubx64.efi                                                                      02-Jul-2019 01:39  1.2M  
[DIR] grub/                                                                            02-Jul-2019 01:39    -   
[   ] bootnetx64.efi                                                                   02-Jul-2019 01:39  1.3M  
[DIR] boot-screens/                                                                    02-Jul-2019 01:39    -
Apache/2.2 Server at debian.noc.ntua.gr Port 80