ftp.ntua.gr:/debian/dists/sid/main/installer-amd64/20210415/images/netboot/debian-installer/amd64/?C=N&O=D 
Icon  Name                                                                             Last modified      Size  
[DIR] Parent Directory                                                                                      -   
[DIR] pxelinux.cfg/                                                                    15-Apr-2021 01:06    -   
[   ] pxelinux.0                                                                       15-Apr-2021 01:06   41K  
[   ] linux                                                                            15-Apr-2021 01:06  6.5M  
[   ] initrd.gz                                                                        15-Apr-2021 01:06   29M  
[   ] grubx64.efi                                                                      15-Apr-2021 01:06  1.4M  
[DIR] grub/                                                                            15-Apr-2021 01:06    -   
[   ] bootnetx64.efi                                                                   15-Apr-2021 01:06  1.3M  
[DIR] boot-screens/                                                                    15-Apr-2021 01:06    -
Apache/2.2 Server at ftp.grnet.gr Port 80