ftp.ntua.gr:/debian/dists/Debian9.13/main/installer-amd64/20170615/images/netboot/debian-installer/amd64/ 
Icon  Name                                                                                    Last modified      Size  
[DIR] Parent Directory                                                                                             -   
[DIR] boot-screens/                                                                           15-Jun-2017 23:55    -   
[   ] bootnetx64.efi                                                                          15-Jun-2017 11:34  436K  
[DIR] grub/                                                                                   16-Jun-2017 23:57    -   
[   ] initrd.gz                                                                               15-Jun-2017 11:34   23M  
[   ] linux                                                                                   15-Jun-2017 11:34  4.0M  
[   ] pxelinux.0                                                                              15-Jun-2017 11:34   41K  
[DIR] pxelinux.cfg/                                                                           15-Jun-2017 11:34    -
Apache/2.2 Server at ftp.grnet.gr Port 80